•Download as PPTX, PDF•

0 likes•533 views

The document discusses ratios, proportions, and how to write and solve them. It provides examples of writing ratios for measurements like width to height. It also demonstrates how to set up and solve proportions using variables, cross products, and equations to find missing values like angle measures when given a ratio relationship. Examples include finding side lengths of triangles when the extended ratio and perimeter are given.

Report

Share

Report

Share

6.1g

6.1g

6.1g

6.1g

Triangle inequality (sides)

Triangle inequality (sides)

4.11.5 Solving Right Triangles

4.11.5 Solving Right Triangles

Inequalities in a triangle

Inequalities in a triangle

Lesson4

Lesson4

Similar triangles student_handout

Similar triangles student_handout

1st semester geometry project

1st semester geometry project

5.5 triangle inequality theorem

5.5 triangle inequality theorem

Lecture 4.1 4.2

Lecture 4.1 4.2

Similar figures and_proportions

Similar figures and_proportions

5 2 triangle inequality theorem

5 2 triangle inequality theorem

7.2 Similar Polygons

7.2 Similar Polygons

Geometry unit 3.1.3.3

Geometry unit 3.1.3.3

7-2 Exterior Angle Theorem

7-2 Exterior Angle Theorem

3.6 prove theorems about perpendicular lines

3.6 prove theorems about perpendicular lines

5.5 triangle inequality theorem

5.5 triangle inequality theorem

Lesson 5 4

Lesson 5 4

2.5.4 Hinge Theorem

2.5.4 Hinge Theorem

TRIANGLE INEQUALITY THEOREM

TRIANGLE INEQUALITY THEOREM

Standard Form Equations 2012 13 edmodo

Standard Form Equations 2012 13 edmodo

Standard Form of the Quadratic Equation to Quadratic Formula

Standard Form of the Quadratic Equation to Quadratic Formula

4.5 quadratic equations

4.5 quadratic equations

Section 4.5 graphing linear equations

Section 4.5 graphing linear equations

Graphing quadratic equations

Graphing quadratic equations

Alg II Unit 4-4 Factoring Quadratic Expressions

Alg II Unit 4-4 Factoring Quadratic Expressions

Alg II Unit 4-3 Modeling with Quadratic Functions

Alg II Unit 4-3 Modeling with Quadratic Functions

4.1 quadratic functions and transformations

4.1 quadratic functions and transformations

Obj. 34 Ratio and Proportion

Obj. 34 Ratio and Proportion

3.8.2 Ratio and Proportion

3.8.2 Ratio and Proportion

19.1 Angles formed by intersecting lines.ppt

19.1 Angles formed by intersecting lines.ppt

Module 1 similarity

Module 1 similarity

Module 1 similarity

Module 1 similarity

Ratio, Rates And Proprotion

Ratio, Rates And Proprotion

Ppt for geometry

Ppt for geometry

3.9.1 Dilation, Scale Factor, and Proportion

3.9.1 Dilation, Scale Factor, and Proportion

Geometry unit 7.1

Geometry unit 7.1

4.3 Dilation and Composition

4.3 Dilation and Composition

LET’S DO MATH.pptx

LET’S DO MATH.pptx

7 1 7-2 ratios and proportions

7 1 7-2 ratios and proportions

Polygons

Polygons

National2009

National2009

types of quadrilaterals

types of quadrilaterals

6.1 ratios, proportions, and the geometric mean

6.1 ratios, proportions, and the geometric mean

Ch1 ratio and proportion

Ch1 ratio and proportion

Geometry

Geometry

Maths Quadrilateral

Maths Quadrilateral

Maths Quadrilateral

Maths Quadrilateral

Geo 7-2 Similar Polygons

Geo 7-2 Similar Polygons

Geometry 1-7 Constructions

Geometry 1-7 Constructions

Angle Sum Theorem

Angle Sum Theorem

Bullying Prevention Certification

Bullying Prevention Certification

Ethics

Ethics

Shipley - Algebra II Ch3 Proficiency Charts

Shipley - Algebra II Ch3 Proficiency Charts

Shipley - Algebra II Ch2 Proficiency Charts

Shipley - Algebra II Ch2 Proficiency Charts

Shipley - Semester 1 Summary Data

Shipley - Semester 1 Summary Data

Ch4 Matrices - How to use the Calculator

Ch4 Matrices - How to use the Calculator

Pre-observation Form Oct 2013

Pre-observation Form Oct 2013

Formal Observation/Notes October 2013

Formal Observation/Notes October 2013

Algebra II Classroom and Homework Expectations

Algebra II Classroom and Homework Expectations

Sina workshop, day 1, january 25, 2013

Sina workshop, day 1, january 25, 2013

Iowa Assessment Math Growth Rates Grades 7-11th

Iowa Assessment Math Growth Rates Grades 7-11th

Geometry Chapter 3 Test Scores and Retake Test

Geometry Chapter 3 Test Scores and Retake Test

Alg II 3-6 Solving Systems - Matrices

Alg II 3-6 Solving Systems - Matrices

Alg II 3-5 Sytems Three Variables

Alg II 3-5 Sytems Three Variables

Alg II 3-4 Linear Programming

Alg II 3-4 Linear Programming

Alg II 3-3 Systems of Inequalities

Alg II 3-3 Systems of Inequalities

Alg II 3-2 Solving Systems Algebraically

Alg II 3-2 Solving Systems Algebraically

ANTI PARKISON DRUGS.pptx

ANTI PARKISON DRUGS.pptx

“O BEIJO” EM ARTE .

“O BEIJO” EM ARTE .

REPRODUCTIVE TOXICITY STUDIE OF MALE AND FEMALEpptx

REPRODUCTIVE TOXICITY STUDIE OF MALE AND FEMALEpptx

Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz

Pragya Champions Chalice 2024 Prelims & Finals Q/A set, General Quiz

Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17

Removal Strategy _ FEFO _ Working with Perishable Products in Odoo 17

UChicago CMSC 23320 - The Best Commit Messages of 2024

UChicago CMSC 23320 - The Best Commit Messages of 2024

Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj

Stl Algorithms in C++ jjjjjjjjjjjjjjjjjj

PSYPACT- Practicing Over State Lines May 2024.pptx

PSYPACT- Practicing Over State Lines May 2024.pptx

SURVEY I created for uni project research

SURVEY I created for uni project research

會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文

會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文會考英文

HVAC System | Audit of HVAC System | Audit and regulatory Comploance.pptx

HVAC System | Audit of HVAC System | Audit and regulatory Comploance.pptx

The Last Leaf, a short story by O. Henry

The Last Leaf, a short story by O. Henry

Word Stress rules esl .pptx

Word Stress rules esl .pptx

Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships

Spring gala 2024 photo slideshow - Celebrating School-Community Partnerships

Exploring Gemini AI and Integration with MuleSoft | MuleSoft Mysore Meetup #45

Exploring Gemini AI and Integration with MuleSoft | MuleSoft Mysore Meetup #45

MSc Ag Genetics & Plant Breeding: Insights from Previous Year JNKVV Entrance ...

MSc Ag Genetics & Plant Breeding: Insights from Previous Year JNKVV Entrance ...

Graduate Outcomes Presentation Slides - English (v3).pptx

Graduate Outcomes Presentation Slides - English (v3).pptx

Dementia (Alzheimer & vasular dementia).

Dementia (Alzheimer & vasular dementia).

How to Analyse Profit of a Sales Order in Odoo 17

How to Analyse Profit of a Sales Order in Odoo 17

How to Manage Closest Location in Odoo 17 Inventory

How to Manage Closest Location in Odoo 17 Inventory

- 2. Students will be able to write and solve ratios Students will be able to write and solve proportions
- 3. Comparison of two quantities by division Written as: • a/b • a : b • a to b Always write in simplest form (reduced form) Make sure units of measure are the same
- 4. A bonsai tree is 18 in wide and stands 2 ft tall. What is the ratio of the width compared to the height? First convert measurements to either inches or feet Then write the ratio in simplest form 18 : 24 3 : 4
- 5. A pigmy rattlesnake has an average length of 18 inches, while a Western diamondback rattlesnake averages 5ft. 6in. What is the ratio of the length of a pigmy to a Western diamondback rattlesnake? 18 : 66 3 : 11
- 6. The measures of two supplementary angles are in the ratio 1:4. What are the measures of the angles? Write the ratio in words: angle 1: angle 2 Then write using variables: x : 4x Set up an equation: x + 4x = 180 Solve the equation: x = 36 Substitute x back into the ratio Angle 1 = 1(36) = 36 Angle 2 = 4(36) = 144
- 7. The measures of two complementary angles are in the ratio 1:3. What are the measures of the angles? Write the ratio in words: angle 1 : angle 2 Then write using variables: x : 3x Set up an equation: x + 3x = 90 Solve the equation: x = 22.5 Substitute x back into the ratio Angle 1 = 1(22.5) = 22.5 Angle 2 = 3(22.5) = 67.5
- 8. Compares 3 or more numbers Written as • a : b : c
- 9. The lengths of the sides of a triangle are in the extended ratio 4 : 7 : 9. The perimeter is 60 cm. What are the lengths of the sides? Write an equation: 4x + 7x + 9x = 60 Solve for x: x = 3 So the lengths of the sides are: • 4(3) = 12 • 7(3) = 21 • 9(3) = 27
- 10. When two ratios are equal Use cross products to solve proportions a = c ad = bc b d
- 12. x/6 = y/7 What ratio completes the equivalent proportion? • x/y = ? • 6/x = ? • (y + 7)/7 = ?
- 13. 9 = a 2 14 15 = 3 m+1 m X = X+2 X – 1 X
- 14. Pg. 368 #2 – 20 even, 21, 26 – 28 all, 37 - 40 all 18 problems