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°

60 is the correct number for this problem.

Hope this was helpful:)

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 

Hello! mark me brainliest
answer:
congruent segments
step-by-step explanation:
congruent segments. take a line, cut it in half, superipose one half over the other half; you'll have congruence.