Question

Angle B and angle C are complementary. If angle B is five times the size of angle C which equation can be used to find the measure of angle C?

A
5x+x=180

B
5x=180

C
5x+x=90

D
5x=90

Answer 1

5x + x = 90

Explanation:

5x+x=90 because complementary angles complete each other to 90 degrees

and one of the angle is stated as 5 times of other

now if we let x represent the angle then the equation would be :

5x + x = 90 degrees