Angle A = 3x+13
Angle B = x- 8
Angle C = x
Sum of all angles in the triangle is 180.
So, 3x + 13 + x - 8 + x = 180
5x + 5 = 180
5x +5 - 5 = 180 -5
5x = 175
x = 35
So measure of angle C = [tex] 35^{0} [/tex]
measure of angle A = 3x +13 = 3(35) + 13
= 105 + 13 = [tex] 118^{0} [/tex]
Measure of angle B = x - 8 = 35 - 8 = [tex] 27^{0} [/tex]
