SlideShare a Scribd company logo
1 of 10
Download to read offline
EUCLIDS FIVE POSTULATES
INTRODUCTION
Postulates are the assumptions that were
specific to the geometry.
THE FIVE POSTULATES
FIRST POSTULATE
SECOND POSTULATE
THIRD POSTULATE
FOURTH POSTULATE
FIFTH POSTULATE
FIRST POSTULATE
A straight line may be drawn from any one point .
This postulate tells that at least one straight line passes
through two distinct points , but it does not say that
there cannot be more than one such line . But Euclid
generally assumed without mentioning that there is a
unique line joining two points .
SECOND POSTULATE
A terminated line can be produced indefinitely.
This postulate shows that what we call a line segment
today was called a terminated line by Euclid .so the
postulate says that a line segment can be extended on
either side to make a line.
THIRD POSTULATE
A circle can be drawn with any centre and any
radius.
 The meaning is very simple , this postulate shows that
using an instrument a circle can be drawn at any plane
because the radius remains the same.
FOURTH POSTULATE
All right angles are equal.
This postulate shows that every right angle is equal and
of 90° and right angles will remain same . So they will be
equal .
FIFTH POSTULATE
If a straight line falling on two straight lines makes
the interior angles on the same side of it taken
together less the two right angles , then the two
straight lines , if produced indefinitely meet on
which the sum of angles is less than two right angles
MADE BY : ARYAVARTA GIRI
CLASS : IX “C”
ROLL NO. : 13
MADE BY : ARYAVARTA GIRI
CLASS : IX “C”
ROLL NO. : 13

More Related Content

What's hot

Introduction to Postulates and Theorems
Introduction to Postulates and TheoremsIntroduction to Postulates and Theorems
Introduction to Postulates and Theoremsneedmath
 
Euclidean geometry
Euclidean geometryEuclidean geometry
Euclidean geometrypawa9pawa
 
7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometry7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometrypinspiration
 
Linear function and slopes of a line
Linear function and slopes of a lineLinear function and slopes of a line
Linear function and slopes of a lineJerlyn Fernandez
 
Math 8 - Linear Functions
Math 8 - Linear FunctionsMath 8 - Linear Functions
Math 8 - Linear FunctionsCarlo Luna
 
History Of Non Euclidean Geometry
History Of Non Euclidean GeometryHistory Of Non Euclidean Geometry
History Of Non Euclidean Geometrydr.f
 
8 - using linear equations to solve word problems
8  - using linear equations to solve word problems8  - using linear equations to solve word problems
8 - using linear equations to solve word problemsAnthony_Maiorano
 
The Coordinate Plane (Geometry 2_4)
The Coordinate Plane (Geometry 2_4)The Coordinate Plane (Geometry 2_4)
The Coordinate Plane (Geometry 2_4)rfant
 
Mathematical system
Mathematical systemMathematical system
Mathematical systemM K
 
Linear Equations in Two Variables
Linear Equations in Two VariablesLinear Equations in Two Variables
Linear Equations in Two Variablessheisirenebkm
 
Euclid powerpoint
Euclid powerpointEuclid powerpoint
Euclid powerpoint41497777
 
Mathematical System-defined and undefined terms.pptx
Mathematical System-defined and undefined terms.pptxMathematical System-defined and undefined terms.pptx
Mathematical System-defined and undefined terms.pptxbernadethvillanueva1
 
Graphs of linear equation
Graphs of linear equationGraphs of linear equation
Graphs of linear equationJunila Tejada
 
Math 8 – mathematics as an axiomatic system
Math 8 – mathematics as an axiomatic systemMath 8 – mathematics as an axiomatic system
Math 8 – mathematics as an axiomatic systemRebekah Andrea Fullido
 
Solving quadratic equations
Solving quadratic equationsSolving quadratic equations
Solving quadratic equationssrobbins4
 

What's hot (20)

Introduction to Postulates and Theorems
Introduction to Postulates and TheoremsIntroduction to Postulates and Theorems
Introduction to Postulates and Theorems
 
Euclidean geometry
Euclidean geometryEuclidean geometry
Euclidean geometry
 
7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometry7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometry
 
Euclids geometry
Euclids geometryEuclids geometry
Euclids geometry
 
Linear function and slopes of a line
Linear function and slopes of a lineLinear function and slopes of a line
Linear function and slopes of a line
 
Math 8 - Linear Functions
Math 8 - Linear FunctionsMath 8 - Linear Functions
Math 8 - Linear Functions
 
History Of Non Euclidean Geometry
History Of Non Euclidean GeometryHistory Of Non Euclidean Geometry
History Of Non Euclidean Geometry
 
Algebraic expressions
Algebraic expressionsAlgebraic expressions
Algebraic expressions
 
8 - using linear equations to solve word problems
8  - using linear equations to solve word problems8  - using linear equations to solve word problems
8 - using linear equations to solve word problems
 
The Coordinate Plane (Geometry 2_4)
The Coordinate Plane (Geometry 2_4)The Coordinate Plane (Geometry 2_4)
The Coordinate Plane (Geometry 2_4)
 
Mathematical system
Mathematical systemMathematical system
Mathematical system
 
Linear Equations in Two Variables
Linear Equations in Two VariablesLinear Equations in Two Variables
Linear Equations in Two Variables
 
Euclid powerpoint
Euclid powerpointEuclid powerpoint
Euclid powerpoint
 
Mathematical System-defined and undefined terms.pptx
Mathematical System-defined and undefined terms.pptxMathematical System-defined and undefined terms.pptx
Mathematical System-defined and undefined terms.pptx
 
Congruent Triangles
Congruent TrianglesCongruent Triangles
Congruent Triangles
 
Graphs of linear equation
Graphs of linear equationGraphs of linear equation
Graphs of linear equation
 
ASA, SAS,AAS,SSS
ASA, SAS,AAS,SSSASA, SAS,AAS,SSS
ASA, SAS,AAS,SSS
 
Math 8 – mathematics as an axiomatic system
Math 8 – mathematics as an axiomatic systemMath 8 – mathematics as an axiomatic system
Math 8 – mathematics as an axiomatic system
 
Introduction to Rational numbers
Introduction to Rational numbersIntroduction to Rational numbers
Introduction to Rational numbers
 
Solving quadratic equations
Solving quadratic equationsSolving quadratic equations
Solving quadratic equations
 

Similar to Euclids five postulates

Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02Shubham Ghadigaonkar
 
euclid's life and achievements
euclid's life and achievementseuclid's life and achievements
euclid's life and achievementsImran Khan
 
Introduction to euclid’s geometry
Introduction to euclid’s geometryIntroduction to euclid’s geometry
Introduction to euclid’s geometryGunadnya Lad
 
Introduction to euclid`s geometry by Al- Muktadir hussain
Introduction to euclid`s geometry by Al- Muktadir hussainIntroduction to euclid`s geometry by Al- Muktadir hussain
Introduction to euclid`s geometry by Al- Muktadir hussainAl Muktadir Hussain
 
Euclid and his achievements.
Euclid and his achievements.Euclid and his achievements.
Euclid and his achievements.AhaanJindal1
 
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION  TO EUCLID'S GEOMETRY.pptxCLASS 9 MATHS GEOMETRY INTRODUCTION  TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptxmota55
 
introduction to euclid geometry
introduction to euclid geometryintroduction to euclid geometry
introduction to euclid geometrySHOBHIT44
 
Amstext 21-prev
Amstext 21-prevAmstext 21-prev
Amstext 21-prevAbay Sevi
 
Final-term Coverage.pptx. ..............
Final-term Coverage.pptx. ..............Final-term Coverage.pptx. ..............
Final-term Coverage.pptx. ..............eustaquiojm1
 
Koningsberg bridge problem
Koningsberg  bridge  problemKoningsberg  bridge  problem
Koningsberg bridge problemSudiksha Joshi
 
EUCLID'S GEOMETRY
EUCLID'S GEOMETRYEUCLID'S GEOMETRY
EUCLID'S GEOMETRYtalha aslam
 
CH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdfCH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdfGauravPahal1
 
Euclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R AhmedEuclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R AhmedMD. G R Ahmed
 

Similar to Euclids five postulates (20)

Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02
 
Euclids Geometry
Euclids GeometryEuclids Geometry
Euclids Geometry
 
euclid's life and achievements
euclid's life and achievementseuclid's life and achievements
euclid's life and achievements
 
Introduction to euclid’s geometry
Introduction to euclid’s geometryIntroduction to euclid’s geometry
Introduction to euclid’s geometry
 
ANECDOTAL RECORDS.pptx
ANECDOTAL RECORDS.pptxANECDOTAL RECORDS.pptx
ANECDOTAL RECORDS.pptx
 
Euclid's geometry
Euclid's geometryEuclid's geometry
Euclid's geometry
 
Introduction to euclid`s geometry by Al- Muktadir hussain
Introduction to euclid`s geometry by Al- Muktadir hussainIntroduction to euclid`s geometry by Al- Muktadir hussain
Introduction to euclid`s geometry by Al- Muktadir hussain
 
Euclid and his achievements.
Euclid and his achievements.Euclid and his achievements.
Euclid and his achievements.
 
Euclid’s geometry
Euclid’s geometryEuclid’s geometry
Euclid’s geometry
 
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION  TO EUCLID'S GEOMETRY.pptxCLASS 9 MATHS GEOMETRY INTRODUCTION  TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
 
introduction to euclid geometry
introduction to euclid geometryintroduction to euclid geometry
introduction to euclid geometry
 
Geometry
GeometryGeometry
Geometry
 
Amstext 21-prev
Amstext 21-prevAmstext 21-prev
Amstext 21-prev
 
Final-term Coverage.pptx. ..............
Final-term Coverage.pptx. ..............Final-term Coverage.pptx. ..............
Final-term Coverage.pptx. ..............
 
Euclid geometry
Euclid geometryEuclid geometry
Euclid geometry
 
Slide task 6
Slide task 6Slide task 6
Slide task 6
 
Koningsberg bridge problem
Koningsberg  bridge  problemKoningsberg  bridge  problem
Koningsberg bridge problem
 
EUCLID'S GEOMETRY
EUCLID'S GEOMETRYEUCLID'S GEOMETRY
EUCLID'S GEOMETRY
 
CH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdfCH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdf
 
Euclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R AhmedEuclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R Ahmed
 

More from Aryavarta Giri

Physics Investigatory Project Class XII.. Water Level Controller.!!
Physics Investigatory Project Class XII.. Water Level Controller.!!Physics Investigatory Project Class XII.. Water Level Controller.!!
Physics Investigatory Project Class XII.. Water Level Controller.!!Aryavarta Giri
 
Gravitation (Class XI Brief)
Gravitation (Class XI Brief)Gravitation (Class XI Brief)
Gravitation (Class XI Brief)Aryavarta Giri
 
Renewable and non renewable resources for class 10 {PHYSICS}
Renewable and non renewable resources  for class 10 {PHYSICS}Renewable and non renewable resources  for class 10 {PHYSICS}
Renewable and non renewable resources for class 10 {PHYSICS}Aryavarta Giri
 
Resources and development
Resources and developmentResources and development
Resources and developmentAryavarta Giri
 

More from Aryavarta Giri (7)

Physics Investigatory Project Class XII.. Water Level Controller.!!
Physics Investigatory Project Class XII.. Water Level Controller.!!Physics Investigatory Project Class XII.. Water Level Controller.!!
Physics Investigatory Project Class XII.. Water Level Controller.!!
 
Gravitation (Class XI Brief)
Gravitation (Class XI Brief)Gravitation (Class XI Brief)
Gravitation (Class XI Brief)
 
Medicinal chemistry
Medicinal chemistry Medicinal chemistry
Medicinal chemistry
 
Renewable and non renewable resources for class 10 {PHYSICS}
Renewable and non renewable resources  for class 10 {PHYSICS}Renewable and non renewable resources  for class 10 {PHYSICS}
Renewable and non renewable resources for class 10 {PHYSICS}
 
Resources and development
Resources and developmentResources and development
Resources and development
 
Softwares
SoftwaresSoftwares
Softwares
 
Geometry
GeometryGeometry
Geometry
 

Recently uploaded

The role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipThe role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipKarl Donert
 
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdfMJDuyan
 
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdfMJDuyan
 
4.4.24 Economic Precarity and Global Economic Forces.pptx
4.4.24 Economic Precarity and Global Economic Forces.pptx4.4.24 Economic Precarity and Global Economic Forces.pptx
4.4.24 Economic Precarity and Global Economic Forces.pptxmary850239
 
647291105-Ppt-Arts-10-4th-Quarter-1.pdfi
647291105-Ppt-Arts-10-4th-Quarter-1.pdfi647291105-Ppt-Arts-10-4th-Quarter-1.pdfi
647291105-Ppt-Arts-10-4th-Quarter-1.pdfijoemmbrillantes
 
Jason Potel In Media Res Media Component
Jason Potel In Media Res Media ComponentJason Potel In Media Res Media Component
Jason Potel In Media Res Media ComponentInMediaRes1
 
The Emergence of Legislative Behavior in the Colombian Congress
The Emergence of Legislative Behavior in the Colombian CongressThe Emergence of Legislative Behavior in the Colombian Congress
The Emergence of Legislative Behavior in the Colombian CongressMaria Paula Aroca
 
Sarah Lahm In Media Res Media Component
Sarah Lahm  In Media Res Media ComponentSarah Lahm  In Media Res Media Component
Sarah Lahm In Media Res Media ComponentInMediaRes1
 
Paul Dobryden In Media Res Media Component
Paul Dobryden In Media Res Media ComponentPaul Dobryden In Media Res Media Component
Paul Dobryden In Media Res Media ComponentInMediaRes1
 
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFE
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFEPART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFE
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFEMISSRITIMABIOLOGYEXP
 
Objectives n learning outcoms - MD 20240404.pptx
Objectives n learning outcoms - MD 20240404.pptxObjectives n learning outcoms - MD 20240404.pptx
Objectives n learning outcoms - MD 20240404.pptxMadhavi Dharankar
 
Sulphonamides, mechanisms and their uses
Sulphonamides, mechanisms and their usesSulphonamides, mechanisms and their uses
Sulphonamides, mechanisms and their usesVijayaLaxmi84
 
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdfMJDuyan
 
Shark introduction Morphology and its behaviour characteristics
Shark introduction Morphology and its behaviour characteristicsShark introduction Morphology and its behaviour characteristics
Shark introduction Morphology and its behaviour characteristicsArubSultan
 
16. Discovery, function and commercial uses of different PGRS.pptx
16. Discovery, function and commercial uses of different PGRS.pptx16. Discovery, function and commercial uses of different PGRS.pptx
16. Discovery, function and commercial uses of different PGRS.pptxUmeshTimilsina1
 
DiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfDiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfChristalin Nelson
 
What is Property Fields in Odoo 17 ERP Module
What is Property Fields in Odoo 17 ERP ModuleWhat is Property Fields in Odoo 17 ERP Module
What is Property Fields in Odoo 17 ERP ModuleCeline George
 
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxCLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxAnupam32727
 

Recently uploaded (20)

CARNAVAL COM MAGIA E EUFORIA _
CARNAVAL COM MAGIA E EUFORIA            _CARNAVAL COM MAGIA E EUFORIA            _
CARNAVAL COM MAGIA E EUFORIA _
 
The role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipThe role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenship
 
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 1) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
 
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 2) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
 
4.4.24 Economic Precarity and Global Economic Forces.pptx
4.4.24 Economic Precarity and Global Economic Forces.pptx4.4.24 Economic Precarity and Global Economic Forces.pptx
4.4.24 Economic Precarity and Global Economic Forces.pptx
 
647291105-Ppt-Arts-10-4th-Quarter-1.pdfi
647291105-Ppt-Arts-10-4th-Quarter-1.pdfi647291105-Ppt-Arts-10-4th-Quarter-1.pdfi
647291105-Ppt-Arts-10-4th-Quarter-1.pdfi
 
Jason Potel In Media Res Media Component
Jason Potel In Media Res Media ComponentJason Potel In Media Res Media Component
Jason Potel In Media Res Media Component
 
The Emergence of Legislative Behavior in the Colombian Congress
The Emergence of Legislative Behavior in the Colombian CongressThe Emergence of Legislative Behavior in the Colombian Congress
The Emergence of Legislative Behavior in the Colombian Congress
 
Sarah Lahm In Media Res Media Component
Sarah Lahm  In Media Res Media ComponentSarah Lahm  In Media Res Media Component
Sarah Lahm In Media Res Media Component
 
Paul Dobryden In Media Res Media Component
Paul Dobryden In Media Res Media ComponentPaul Dobryden In Media Res Media Component
Paul Dobryden In Media Res Media Component
 
Chi-Square Test Non Parametric Test Categorical Variable
Chi-Square Test Non Parametric Test Categorical VariableChi-Square Test Non Parametric Test Categorical Variable
Chi-Square Test Non Parametric Test Categorical Variable
 
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFE
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFEPART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFE
PART 1 - CHAPTER 1 - CELL THE FUNDAMENTAL UNIT OF LIFE
 
Objectives n learning outcoms - MD 20240404.pptx
Objectives n learning outcoms - MD 20240404.pptxObjectives n learning outcoms - MD 20240404.pptx
Objectives n learning outcoms - MD 20240404.pptx
 
Sulphonamides, mechanisms and their uses
Sulphonamides, mechanisms and their usesSulphonamides, mechanisms and their uses
Sulphonamides, mechanisms and their uses
 
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
(Part 3) CHILDREN'S DISABILITIES AND EXCEPTIONALITIES.pdf
 
Shark introduction Morphology and its behaviour characteristics
Shark introduction Morphology and its behaviour characteristicsShark introduction Morphology and its behaviour characteristics
Shark introduction Morphology and its behaviour characteristics
 
16. Discovery, function and commercial uses of different PGRS.pptx
16. Discovery, function and commercial uses of different PGRS.pptx16. Discovery, function and commercial uses of different PGRS.pptx
16. Discovery, function and commercial uses of different PGRS.pptx
 
DiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfDiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdf
 
What is Property Fields in Odoo 17 ERP Module
What is Property Fields in Odoo 17 ERP ModuleWhat is Property Fields in Odoo 17 ERP Module
What is Property Fields in Odoo 17 ERP Module
 
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxCLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
 

Euclids five postulates

  • 2. INTRODUCTION Postulates are the assumptions that were specific to the geometry.
  • 3. THE FIVE POSTULATES FIRST POSTULATE SECOND POSTULATE THIRD POSTULATE FOURTH POSTULATE FIFTH POSTULATE
  • 4. FIRST POSTULATE A straight line may be drawn from any one point . This postulate tells that at least one straight line passes through two distinct points , but it does not say that there cannot be more than one such line . But Euclid generally assumed without mentioning that there is a unique line joining two points .
  • 5. SECOND POSTULATE A terminated line can be produced indefinitely. This postulate shows that what we call a line segment today was called a terminated line by Euclid .so the postulate says that a line segment can be extended on either side to make a line.
  • 6. THIRD POSTULATE A circle can be drawn with any centre and any radius.  The meaning is very simple , this postulate shows that using an instrument a circle can be drawn at any plane because the radius remains the same.
  • 7. FOURTH POSTULATE All right angles are equal. This postulate shows that every right angle is equal and of 90° and right angles will remain same . So they will be equal .
  • 8. FIFTH POSTULATE If a straight line falling on two straight lines makes the interior angles on the same side of it taken together less the two right angles , then the two straight lines , if produced indefinitely meet on which the sum of angles is less than two right angles
  • 9. MADE BY : ARYAVARTA GIRI CLASS : IX “C” ROLL NO. : 13
  • 10. MADE BY : ARYAVARTA GIRI CLASS : IX “C” ROLL NO. : 13