Question

Among two supplementary angles, the measure of larger angle is 42° more than the measure of the smaller.find their measure

Answer 1

let x = measure of smaller angle
then x +42= measure of larger angle
x + x+42=180
2x +42=180
2x=138
x=69
so the meaure of samller angle is 69
and the measure of larger angel =x+42=69+42
=111