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## 8th grade (Eureka Math/EngageNY)

### Unit 2: Lesson 3

Topic C: Congruence and angle relationships- Congruence and similarity — Basic example
- Congruence and similarity — Harder example
- Angles, parallel lines, & transversals
- Parallel & perpendicular lines
- Missing angles with a transversal
- Angle relationships with parallel lines
- Measures of angles formed by a transversal
- Equation practice with angles
- Angles in a triangle sum to 180° proof
- Triangle exterior angle example
- Find angles in triangles
- Find angles in isosceles triangles
- Worked example: Triangle angles (intersecting lines)
- Worked example: Triangle angles (diagram)
- Finding angle measures between intersecting lines
- Finding angle measures using triangles
- Triangle angle challenge problem
- Triangle angle challenge problem 2

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# Finding angle measures between intersecting lines

CCSS.Math: 7.G.B.5

## Problem

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