Question

find the magnitude of an angle which is

(a)3/5 of its supplement
(b)¾ of its of compliment ​

Answer 1

let 'x' be the angle

given that,

x=3/5(supplement)

x=3/5(180-x)

x=108-3x/5

x+3x/5=108

8x/5=108

8x=108×5

8x=540

x=540/8

x=67.5°