Question

find the two supplementary angles if one exceeds the other by 18?

Answer 1

let one be x and other be x+18
x+x+18=360 degree
2x+18=360 degree
2x=360-18
2x=342
x=342÷2
x=171
therefore one supplementary angle is 171 and the supplementary angle is 189.

Answer 2

Hello !!



Let one angle be X.


Other angle = ( 180 - X ).




A/Q


X + 18 = 180 - X



X + X = 180 - 18


2X = 162


X= 162/2 = 81



One angle = X = 81°


And,

Other angle = 180 - X = 180-81 = 99°