Question

Please help. I've been working on this problem for more than 2 hours. Thank you.

three support beams for a bridge form a pair of complementary angles. Find the measure of each angle.

Answer 1

20° and 70°

Explanation:

(4x-10)+(2x-20)=90

6x-30=90

6x=90+30

6x=120

x=20

2(20)-20=20

4(20)-10=70

20+70=90