Question

1. In an isosceles triangle ABC, AB = AC, angle A = 80°.
Find the value of angle B and

angle C.​

Answer 1

Answer:

Step-by-step explanation:

since,ABC is an isosceles triangle

=>ANGLE B =ANGLE C

=>ANGLE A+B+C=180 (angle sum property)

SINCE,B=C LET IT BE X

80+2x=180

2x=100

x=50

=>a=b=50

Answer 2

Answer:

50 degree

Step-by-step explanation:

In an isosceles triangle sum of all angles is equals to 180 degree and two angles are same

so,A+B+C=180

80+2B=180. (in isosceles triangle two angles are same so B equals to C so we write this )

2B=100

B=50

C=50 because B equal to C

please rate my answer

I hope it will help you