Navigation

9-12 Integrated Math 2 Unit 1 Lesson 11

Gradeband

K-5 Math 6-8 Math •9-12 Math

Course

Integrated Math 1 •Integrated Math 2 Integrated Math 3

Unit

•Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

Modeling Prompts

Lesson

Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 •Lesson 11 Lesson 12 Lesson 13 Lesson 14

K-5
6-8
9-12

Integrated Math 1
Integrated Math 2
Integrated Math 3

Algebra 1
Geometry
Algebra 2
Extra Support Materials for Algebra 1

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8

Modeling Prompts

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14

Lesson | Practice | Loading...

Sign in to access protected content and invite other educators

Sign in using your existing Kendall Hunt account. If you don’t have one, create an educator account.

Curriculum

IM K-5 Math
IM 6-8 Math
IM 9-12 Math

Professional Learning

Illustrative Mathematics® has operated as an independent 501(c)3 non-profit organization since 2013.

©2024 Illustrative Mathematics®. Licensed under CC BY-NC 4.0.

The Illustrative Mathematics name and logo are not subject to the Creative Commons license and may not be used without the prior and express written permission of Illustrative Mathematics.

This site includes public domain images or openly licensed images that are copyrighted by their respective owners. Openly licensed images remain under the terms of their respective licenses. See the image attribution section for more information.

Settings

Audience

family

Not all roles available for this page.

Assessment Access

Sign in to view assessments and invite other educators

Sign in using your existing Kendall Hunt account. If you don’t have one, create an educator account.

teacher
student
family

Unit 1, Lesson 11

Are Those Triangles Congruent?

$Course Icon$

Integrated Math 2

Practice

Problem 1

Student Task Statement

Name a pair of congruent triangles. Then state the triangle congruence postulate that shows the triangles are congruent.

, ,

to access Practice Problem Solutions.

Problem 2

Student Task Statement

Complete this congruence statement for these two triangles. Then state the triangle congruence postulate that shows the triangles are congruent.

Triangle is congruent to triangle .

, ,

to access Practice Problem Solutions.

Problem 3

Student Task Statement

Name a pair of congruent triangles. Then state the triangle congruence postulate that shows the triangles are congruent.

,

to access Practice Problem Solutions.

Problem 4

Student Task Statement

Here is rectangle . Prove that the diagonals are congruent.

to access Practice Problem Solutions.

Problem 5

Student Task Statement

Name a pair of congruent triangles. Then state the triangle congruence postulate that shows the triangles are congruent.

, ,

to access Practice Problem Solutions.

Problem 6

ForLesson 9: Transformations, Transversals, and Proof

Student Task Statement

Explain how you know that lines and are parallel.

<p>Triangle A B C. A C on line L. Point D on A B, point E on B C. Line m runs through points D and E. Angles B A C and B D E congruent.</p>

to access Practice Problem Solutions.

Problem 7

ForLesson 9: Transformations, Transversals, and Proof

Student Task Statement

In the figure shown, Angle 3 is congruent to Angle 6. Select all statements that must be true.

<p>Parallel lines f and g cut by a transversal, creating angles 1, 2, 3 and 4 at intersection of lines g and transversal, and creating angles 5, 6, 7 and 8 at intersection of lines f and transversal.</p>

Lines and are parallel.

to access Practice Problem Solutions.

Lesson 11 Resources

Student Materials

Angle 2 is congruent to Angle 6.

Angle 2 and Angle 5 are supplementary.

Angle 1 is congruent to Angle 7.

Angle 4 is congruent to Angle 6.