SOLUTION: Image - https://i.imgur.com/D2AULFL.png What is the measure of angle 2 & 1.

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Question 1105319: Image - https://i.imgur.com/D2AULFL.png
What is the measure of angle 2 & 1.

Answer by josgarithmetic(39799) About Me  (Show Source):
You can put this solution on YOUR website!
Triangle on the Left:

angleOne%2B90=120, which you know because one angle labeled as right and external angle is sum of the two other interior angles.

angleOne=30




Triangle on the Right:
Isosceles, and you find base angles are each 30 degrees. You see that angleTwo is supplementary with the base angle? Think!