Answer:
81 , 99
Step-by-step explanation:
Let the supplement angle = x
The required angle = x+ 18
x + 18 + x = 180 {Supplementary}
2x + 18 = 180
Subtract 18 form both sides
2x = 180- 18
2x = 162
Divide both sides by 2
x = 162/2
x = 81
x + 18 = 81 + 18 = 99
