Question

hi how to solve this​

Answer 1

Step-by-step explanation:

In Isosceles triangle ACD

<A=<D=x

<ACB+<ACD=180°

<ACD=120°

Now, In Triangle ACD

<A+<C+<D=180°

x+x+120=180

2x=180-120

2x=60

x=30°