Will mark brainliest! on a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º.

what is the measure of the third angle?

a. 60°
b. 80°
c. 100°
d. 180°

100 degrees. The sum of a triangle's angles equal 180, so subtract 50 to get 130. Subtract 30 from that to get 100.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

just get this app called photo math it should be able to do those