5, Lesson 10, Unit 7, Grade 7, OpenUp icon
Instructional Activity

Three Angles

Lesson 10. Unit 7. Grade 7 Open Up Resources

Open Up Resources15 min(s)

This Instructional Activity is a part of the Lesson 10, Unit 7, Grade 7. This activity focuses on including three angle conditions. The goal is for students to notice that some angle conditions result in a large number of possible triangles (all scaled copies of one another) or are impossible to create. Students are not expected to learn that the angles must sum to 180 degrees in a triangle, but are not barred from noticing this fact.

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