CPM Homework Banner
3-9.

Examine each diagram below. Identify the error in each diagram.  Homework Help ✎

Signal light

  1. 3-9a diagram

    Compare the length of the longest side with the sum of the two shorter sides.

  1. 3-9a diagram

    Test the side lengths with the Pythagorean Theorem.

  1. 3-9c diagram

    Since the sum of the interior angles in a triangle is , fill in the measure of the third angle. Considering the given side lengths, does this make sense?