Question

one angle is 3times its supplement find the measures of the two supplementary angles

Answer 1

let one angle = x
second angle = (180-x)
x = 3(180-x)
x=540-3x
x+3x=540
4x=540
x=540/4
x=135
∴ one angle = x= 135
second angle = 180-x = 180 -135 =45

Answer 2

Answer:

Step-by-step explanation:

let one angle = x

second angle = (180-x)

x = 3(180-x)

x=540-3x

x+3x=540

4x=540

x=540/4

x=135

∴ one angle = x= 135

second angle = 180-x = 180 -135 =45