Question

How do you find the answer to it and how do you set it up

Answer 1

vertical angles are congruent so

4x = 5x-30

-1x = -30

x = 30

4*30 = 120

5(30) - 30

150 - 30

= 120

to find the sides since the are supplementary angles do 180 - 120

both = 60 degrees