Answer:
The answer is 40° and 50°.
Step-by-step explanation:
COMPLEMENTARY ANGLES
> Complementary angles are two angles that add up to 90°.
First, let's set up the problem.
4x + 5x = 90
Then, we will add 4x and 5x.
(4+5)x = 9x
9x = 90
After that, we will divide both sides by 9.
9x ÷ 9 = 90 ÷ 9x
x = 10
Now that we know that x = 10, we will multiply to find the measurement of the angle.
4(x) = 4(10) = 40
5(x) = 5(10) = 50
The answer is 40° and 50°.
