Question

Find the value of x exterior angle is given 140. Plz give explanation

Answer 1

x will be 20 I think

Answer 2

the two blue angles are equal and two yellow angles are equal because of equal sides.

140+blue angle=180 ( linear pair)
hence, blue angle =40

now, the sum of two yellow angles is 40 because of ext angle property.
hence, x+x=40
2x=40

x=20