Question

In triangle ABC, AB = AC and angle A = 40°. Find x and y.​

Answer 1

Answer:

x=70 degree and y= 70 degree

Step-by-step explanation:

it is given that AB=AC

so it is an isosceles triangle

so angle B = angle C

now

angle A + angle B + angle C = 180

40 + X + X =180

40 + 2X =180

2X =180 - 40

2X = 140

X = 70

hence angle B = angle C = 70 degree