Question

On a piece of paper, use a protractor to construct a triangle with angle measures of 50° and 70º.

What is the measure of the third angle?

60°

80°

100°

180°

Answer 1

The right answer is 60. M<1 + M<2 + M<3 = 180
50 + 70 + M<3 = 180
120 + M<3 = 180
120 - -120
____ ___
M<3 = 60

Answer 2

60 is the correct number for this problem.

Hope this was helpful:)