Question

Find the angle which is four times its complement.​

Answer 1

Let the one angle be x and the other be 4x,

 x+4x=90

5x=90

x=18

therefore,angle 72 is the angle which is four times its complement

Hope its helpful for you.....

Answer 2

Let the angle be X

Complement angle (90°-x)

Atq

Angle is four times its compliment

x=4(90-x)

x=360-4x

5x=360

x=72.

Compliment angle=90-72=18.