Question

An angle is 20degree less than four times it's supplement. Find the two angles.

Answer 1

HI

let the smaller angle be x

then 4x-20°

so x+4x-20=180

5x=200

x=40

4x-20=140

Answer 2

Step-by-step explanation:

let angle is X according to question

if first angle x then the other angle is X-20

the sum of all supplementary angle is 180 degree

X + X-20=180

2X=200

X=100

the first angle will be 100 and second angle will be 80