Question

fast please step by step​

Answer 1

Answer:

70

Step-by-step explanation:

Now, AB = AC

So angle B = Angle C = x

Now in triangle ABC

40 + x + x = 180

40 + 2x = 180

2x = 180 - 40

x = 140 / 2

x = 70

Answer 2

Step-by-step explanation:

Two side equal the two angle equal

therefor angle B = angle C. -1

angle A +angle B + angle C = 180° (angle sum property

40° + 2angle B =180 (from equation 1)

2angle B = 140

angle B = 70

THERFOR ANGLE B =70 AND AND ANGLE C = 70