## What's hot

Euclid geometry
Euclid geometry
ishu goyal

Introduction to euclid’s geometry
Introduction to euclid’s geometry
Srihari Sanjeev

Euclidean geometry
Euclidean geometry
pawa9pawa

introduction to euclid geometry
introduction to euclid geometry
SHOBHIT44

Circles IX
Circles IX
Vaibhav Goel

Lines and angles class 9 ppt made by hardik kapoor
Lines and angles class 9 ppt made by hardik kapoor
hardik kapoor

Euclid's axiom
Euclid's axiom
ishu goyal

Euclids geometry
Euclids geometry
Snehal Bhargava

htanny

Circles class 9
Circles class 9

Visualising solid shapes, ppt
Visualising solid shapes, ppt
Shivam Mittal

ppt on Triangles Class 9
ppt on Triangles Class 9
Gaurav Kumar

Lines and angles Class 9 _CBSE
Lines and angles Class 9 _CBSE
Smrithi Jaya

Coordinate geometry
Coordinate geometry
Anju Soman

symmetry for class 7
symmetry for class 7
ABHINANDAN Lalit

Congruence of triangles
Congruence of triangles
Spandan Bhattacharya

Triangles (Similarity)
Triangles (Similarity)
Mohan Kumar

Euclid
Trigonometry Presentation For Class 10 Students
Trigonometry Presentation For Class 10 Students

Triangles For Class 10 CBSE NCERT
Triangles For Class 10 CBSE NCERT
Let's Tute

### What's hot(20)

Euclid geometry
Euclid geometry

Introduction to euclid’s geometry
Introduction to euclid’s geometry

Euclidean geometry
Euclidean geometry

introduction to euclid geometry
introduction to euclid geometry

Circles IX
Circles IX

Lines and angles class 9 ppt made by hardik kapoor
Lines and angles class 9 ppt made by hardik kapoor

Euclid's axiom
Euclid's axiom

Euclids geometry
Euclids geometry

Circles class 9
Circles class 9

Visualising solid shapes, ppt
Visualising solid shapes, ppt

ppt on Triangles Class 9
ppt on Triangles Class 9

Lines and angles Class 9 _CBSE
Lines and angles Class 9 _CBSE

Coordinate geometry
Coordinate geometry

symmetry for class 7
symmetry for class 7

Congruence of triangles
Congruence of triangles

Triangles (Similarity)
Triangles (Similarity)

Euclid
Euclid

Trigonometry Presentation For Class 10 Students
Trigonometry Presentation For Class 10 Students

Triangles For Class 10 CBSE NCERT
Triangles For Class 10 CBSE NCERT

## Similar to Euclids geometry class 9 cbse

CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
mota55

ANECDOTAL RECORDS.pptx
ANECDOTAL RECORDS.pptx
miftahuljannah185938

Euclids geometry
Euclids geometry
Rajat Kumar

Euclid's geometry
Euclid's geometry
Lohitha2001

Math ppt by parikshit
Math ppt by parikshit

Geometry
Yash group Maths PPT for class IX
Yash group Maths PPT for class IX
Yash Jangra

EUCLID'S GEOMETRY
EUCLID'S GEOMETRY
talha aslam

Euclid's geometry
Euclid's geometry
Smruti Shetty

Euclids geometry
Euclids geometry
Snehal Bhargava

Presentation on the Euclid
Presentation on the Euclid

euclid geometry
euclid geometry
arivuselvi3

Euclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R Ahmed
MD. G R Ahmed

euclid's life and achievements
euclid's life and achievements
Imran Khan

7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometry
pinspiration

Euclid ppt about him and his inventions
Euclid ppt about him and his inventions
Mjk Jayanth

3.2 geometry the language of size and shape
3.2 geometry the language of size and shape
Raechel Lim

Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02

CH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdf
GauravPahal1

9019. Kavyaa Ghosh (Class 9th) Presentation.pptx
9019. Kavyaa Ghosh (Class 9th) Presentation.pptx
Kavyaa46

### Similar to Euclids geometry class 9 cbse(20)

CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx
CLASS 9 MATHS GEOMETRY INTRODUCTION TO EUCLID'S GEOMETRY.pptx

ANECDOTAL RECORDS.pptx
ANECDOTAL RECORDS.pptx

Euclids geometry
Euclids geometry

Euclid's geometry
Euclid's geometry

Math ppt by parikshit
Math ppt by parikshit

Geometry
Geometry

Yash group Maths PPT for class IX
Yash group Maths PPT for class IX

EUCLID'S GEOMETRY
EUCLID'S GEOMETRY

Euclid's geometry
Euclid's geometry

Euclids geometry
Euclids geometry

Presentation on the Euclid
Presentation on the Euclid

euclid geometry
euclid geometry

Euclids geometry for class IX by G R Ahmed
Euclids geometry for class IX by G R Ahmed

euclid's life and achievements
euclid's life and achievements

7 euclidean&non euclidean geometry
7 euclidean&non euclidean geometry

Euclid ppt about him and his inventions
Euclid ppt about him and his inventions

3.2 geometry the language of size and shape
3.2 geometry the language of size and shape

Introductiontoeuclidsgeometryby 131215081330-phpapp02
Introductiontoeuclidsgeometryby 131215081330-phpapp02

CH-5 EUCLID’S GEOMETRY introduction.pdf
CH-5 EUCLID’S GEOMETRY introduction.pdf

9019. Kavyaa Ghosh (Class 9th) Presentation.pptx
9019. Kavyaa Ghosh (Class 9th) Presentation.pptx

The Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdf
luzmilaglez334

The Jewish Trinity : Sabbath,Shekinah and Sanctuary 4.pdf
The Jewish Trinity : Sabbath,Shekinah and Sanctuary 4.pdf
JackieSparrow3

modul ajar kelas x bahasa inggris 2024-2025
modul ajar kelas x bahasa inggris 2024-2025
NurFitriah45

How to Handle the Separate Discount Account on Invoice in Odoo 17
How to Handle the Separate Discount Account on Invoice in Odoo 17
Celine George

SEQUNCES Lecture_Notes_Unit4_chapter11_sequence
SEQUNCES Lecture_Notes_Unit4_chapter11_sequence
Murugan Solaiyappan

C Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdf
Scholarhat

H. A. Roberts: VITAL FORCE - Dr. Niranjan Bapat
H. A. Roberts: VITAL FORCE - Dr. Niranjan Bapat
Niranjan Bapat

Imagination in Computer Science Research
Imagination in Computer Science Research
Abhik Roychoudhury

The basics of sentences session 10pptx.pptx
The basics of sentences session 10pptx.pptx
heathfieldcps1

(T.L.E.) Agriculture: Essentials of Gardening
(T.L.E.) Agriculture: Essentials of Gardening
MJDuyan

How to Create Sequence Numbers in Odoo 17
How to Create Sequence Numbers in Odoo 17
Celine George

2024 KWL Back 2 School Summer Conference
2024 KWL Back 2 School Summer Conference
KlettWorldLanguages

artenzmartenkai

formative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.V
DrRavindrakshirsagar1

Cómo crear video-tutoriales con ScreenPal (2 de julio de 2024)
Cómo crear video-tutoriales con ScreenPal (2 de julio de 2024)
Cátedra Banco Santander

BRIGADA ESKWELA OPENING PROGRAM KICK OFF.pptx
BRIGADA ESKWELA OPENING PROGRAM KICK OFF.pptx
kambal1234567890

How to Empty a One2Many Field in Odoo 17
How to Empty a One2Many Field in Odoo 17
Celine George

Edukasyong Pantahanan at Pangkabuhayan 1: Personal Hygiene
Edukasyong Pantahanan at Pangkabuhayan 1: Personal Hygiene
MJDuyan

Celine George

1-NLC-MATH7-Consolidation-Lesson1 2024.pptx
1-NLC-MATH7-Consolidation-Lesson1 2024.pptx
AnneMarieJacildo

The Cruelty of Animal Testing in the Industry.pdf
The Cruelty of Animal Testing in the Industry.pdf

The Jewish Trinity : Sabbath,Shekinah and Sanctuary 4.pdf
The Jewish Trinity : Sabbath,Shekinah and Sanctuary 4.pdf

modul ajar kelas x bahasa inggris 2024-2025
modul ajar kelas x bahasa inggris 2024-2025

How to Handle the Separate Discount Account on Invoice in Odoo 17
How to Handle the Separate Discount Account on Invoice in Odoo 17

SEQUNCES Lecture_Notes_Unit4_chapter11_sequence
SEQUNCES Lecture_Notes_Unit4_chapter11_sequence

C Interview Questions PDF By Scholarhat.pdf
C Interview Questions PDF By Scholarhat.pdf

H. A. Roberts: VITAL FORCE - Dr. Niranjan Bapat
H. A. Roberts: VITAL FORCE - Dr. Niranjan Bapat

Imagination in Computer Science Research
Imagination in Computer Science Research

The basics of sentences session 10pptx.pptx
The basics of sentences session 10pptx.pptx

(T.L.E.) Agriculture: Essentials of Gardening
(T.L.E.) Agriculture: Essentials of Gardening

How to Create Sequence Numbers in Odoo 17
How to Create Sequence Numbers in Odoo 17

2024 KWL Back 2 School Summer Conference
2024 KWL Back 2 School Summer Conference

formative Evaluation By Dr.Kshirsagar R.V
formative Evaluation By Dr.Kshirsagar R.V

Cómo crear video-tutoriales con ScreenPal (2 de julio de 2024)
Cómo crear video-tutoriales con ScreenPal (2 de julio de 2024)

BRIGADA ESKWELA OPENING PROGRAM KICK OFF.pptx
BRIGADA ESKWELA OPENING PROGRAM KICK OFF.pptx

How to Empty a One2Many Field in Odoo 17
How to Empty a One2Many Field in Odoo 17

Edukasyong Pantahanan at Pangkabuhayan 1: Personal Hygiene
Edukasyong Pantahanan at Pangkabuhayan 1: Personal Hygiene

1-NLC-MATH7-Consolidation-Lesson1 2024.pptx
1-NLC-MATH7-Consolidation-Lesson1 2024.pptx

### Euclids geometry class 9 cbse

• 2. Introduction Geometry:-’Geo’ means “earth” and ‘metrein’ means “to measure”. Need of measuring land
• 3. Evolution of Geometry in different countries(Egypt)  River Nile flooding- boundaries of plots were overdrawn  Techniques for finding volumes of granaries, constructing canals and pyramids.
• 5. Use of Geometry in Indus Valley Civilization Excavations at Harappa and Mohenjodaro. Cities , roads, drainage systems, rooms of different types(mensuration and practical arithmetic), bricks (4:2:1)
• 7. Thales (Greek Mathematician)  Thales gave first known proof  Circle is bisected by its diameter
• 10. Euclid’s Definitions 1. A point is that which has no part. 2. A line is breadthless length. 3. The ends of a line are points. 4. A straight line is a line which lies evenly with the points on itself. 5. A surface is that which has length and breadth only. 6. The edges of a surface are lines. 7. A plane surface is a surface which lies evenly with the straight lines on itself.
• 11.  The definitions of a point, a line, and a plane, are not accepted by mathematicians. Therefore, these terms are taken as undefined.  Models Euclid’s Definitions problem
• 13. Euclid's Postulates: 1. A straight line can be drawn from any point to any point. 2. A terminated line can be produced indefinitely. 3. It is possible to describe a circle with any centre any distance. 4. All right angles are equal to one another. 5. If a straight line falling on two straight lines makes the interior angles on the same side of it taken together less than two right angles, then the two straight lines, if produced indefinitely, meet on that side on which the sum of angles is less than two right angles.
• 14. Two equivalent versions of the Fifth Euclid’s postulates: (i). ‘For every line l and for every point P not lying on l, there exists a unique line m passing through P and parallel to l’. (ii). Two distinct intersecting lines cannot be parallel to the same line.
• 15. Euclid's Axioms: 1. Things which are equal to the same things are also equal to one another. E.g. If A=B & C=B. that is both A & C are equal to B, then A & C will be equal. 2. If equals are added to equals, then the wholes are equal. E.g. Two glasses A & A’ has same volume of water. Now we add equal quantity of water B, to both glass A & A’, then the final volume of water in the jar will be same. A+ B will be equal to A’ + B. 3. If equals are subtracted from equals, then the remainders are equal. E.g. Two glasses A & A’ has same volume of water. Now we remove equal quantity of water B, from both glass A & A’, then the final volume of water in the jar will be same. A- B will be equal to A’ - B. 4. Things which coincide with one another are equal to one another. E.g. if two triangles coincide with each other then they are equal.
• 16. Euclid's Axioms: 5. The whole is greater than the part. This statement is true in physics, chemistry, mathematics, geometry, biology, economics etc. 6. Things which are double of the same things are equal to one another. If A= A’ then 2A= 2A’. 7. Things which are halves of the same things are equal to one another. If A= A’ then ½ A= ½ A’.
• 17. Theorems or Prepositions: After stating Postulates & Axioms, Euclid used these to prove other results by applying deductive reasoning. E.g.: “Diameter divides circle in 2 parts” is a theorem. Euclid deduced 465 Theorems. “Two distinct lines cannot have more than one point in common” is a theorem.
• 18. Non Euclidean Geometry/Spherical geometry Lines are not straight. They are parts of great circles (i.e., circles obtained by the intersection of a sphere and planes passing through the centre of the sphere).  5th postulate of Euclid- Lines AN & BN should not meet but they meet at point N. It has been proved that Euclidean geometry is valid only for the figures in the plane. On the curved surfaces, it fails.
Current LanguageEnglish
Español
Portugues
Français
Deutsche