Question

the angle whose supplement is 3 times its complement

Answer 1

let the angle be x
let it supplement be =(180-x)
let its complement be =(90-x)
according to the question
3(90-x)=180-x
270-3x=180-x
x=45

Answer 2

let the angle be x
its supplement = 180 -x
its complement = 90 - x

as per given condition
180 - x = 3 (90-x)
180 - x = 270 - 3x
3x - x = 270 - 180
2x = 90
x = 45°
hope it helps. . . . . mark as brainlliest answer