CPM Homework Banner

Home > CC3 > Chapter 9 > Lesson 9.1.4 > Problem 9-49

9-49.

Use what you know about the angles in a triangle to find in each diagram below. Show all work. Then classify each triangle as acute, right, or obtuse. Homework Help ✎

By the Angle Sum Theorem, the sum of all interior angles of a triangle is always .

  1. triangle (a)

  1. triangle (b)