Question

In+triangleAbC+,+angle+A++angleB+=85+angleB++angleC=+150+find+a+b+c

Answer 1

angle A + angle B + angle C=180

as given the value of angle A+ angle B

85 + angle C = 180

angle C = 95

angle B + angle C=150

angle B = 150 -95 =55

angle A + angleB=80

angle A =85-55 = 30