Question

Two complementary angles are 4x and 5x. Find their measures

Answer 1

According to the question, 4x and 5x are complementary angles.

That means, 4x + 5x = 90°

=> 9x = 90°

=> x = 90° ÷ 9

=> x = 10°

Therefore, 4x = 4 × 10° = 40° and 5x = 5 × 10° = 50°.

Hence, the measures of the complementary angles are 40° and 50°.

Answer 2

Answer: 40°  and  50°

Step-by-step explanation:

⇒4x + 5x =90°

⇒9x = 90°

⇒x = 10°

⇒ 4x= 4x 10°

⇒40°

⇒5x10° ⇒50°