## 7 - 9 POTD99 Prove interior angles of a triangle by arranging 3 copies + take-home assessment.docx - Section 2: Play of the Day

7 - 9 POTD99 Prove interior angles of a triangle by arranging 3 copies + take-home assessment.docx

# Arrange 3 copies to prove interior angles of triangles

Unit 7: PARALLEL LINES, TRANSVERSALS, AND TRIANGLES
Lesson 9 of 9

## Big Idea: Get performance data on student mastery of this unit by assessing students on key concepts and practices.

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3 teachers like this lesson
Standards:
Subject(s):
Math, Geometry, 8th grade, properties of triangles, reasoning and proof
75 minutes

### Jeff Li MTP

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