Question

What are the three angle measures in the
triangle shown below?
5x - 7
11x – 4
3x + 1

Answer 1

All angles in a triangle adds to 180

5x-7+11x-4+3x+1=180
19x-10=180
19x=190
x=10

Substitute x for each equation

5(10)-7=43
11(10)-4=106
3(10)+1=31