Lesson Cool Down Triangle Angle Sum a Third Way Elena wants

Last updated: 10/16/2023

Lesson Cool Down Triangle Angle Sum a Third Way Elena wants to prove that the measures of the 3 angles in a triangle always sum to 180 degrees She starts by using rigid motions to rotate triangle ABC 180 degrees around 2 midpoints 9 c C D B bo B Explain how Elena labeled her diagram and finish her proof MLA m B mcc 180 bo A g C C E