Question

In triangle ABC, the measure of angle C is eight times the measure of angle A, and the measure of angle B is 10° more than the measure of angle C. Find the measure of each angle of the triangle

Answer 1

A+B+C=180
C=8A
B=C+10=8A+10

So: A+(8A+10)+8A=180
17A=170
So A=10
then C=80
B=90