Unit 6, Lesson 14, Grade 7 icon
Unit 6, Lesson 14

Checking for Identical Triangles (Continued)

EngageNY 45 min(s)

Students use information, such as vertical angles and common sides in the structure of triangle diagrams, to establish whether conditions that determine a unique triangle exist. Students use conditions that determine a unique triangle to determine when two triangles are identical. Students construct viable arguments to explain why the given information can or cannot give a triangle correspondence between identical triangles. For example, they may share a common side, may be arranged in a way so that two angles from the triangles are vertical angles, and so on.

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