SOLUTION: Two angles in a triangle measure 20 degrees and 100 degrees. What is the measure of the third?

Algebra.Com
Question 391377: Two angles in a triangle measure 20 degrees and 100 degrees. What is the measure of the third?
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
Note: sum of the angles in a triangle is 180°
20° + 100° = 120°
180° -120° = 60°, the measure of the third angle
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