Question

Find the value of X?

Answer 1

Step-by-step explanation:

Here ΔABC is iso.

so the A+B+C=180

2*B+A=180

2*B+80=180

2*B=100

B=50°

C=50°

A=80°

Answer 2

Answer:

since it is an isoceles triangle

angle C= angle B

angle A=80

180-80=100

100/2=50=angle C= angle B

extend B to meet AC at D

angle d =90

Step-by-step explanation: