Question

In triangle ABC,A=400,AB=AC find the measure of BandC.​

Answer 1

Answer:

70°

Step-by-step explanation:

Angle A = 40°

AB=AC

So, Angle B = Angle C

Angle A + Angle B + Angle C = 180°

40 + Angle C + Angle C = 180

2*Angle C = 140

So, Angle C = Angle B = 70°