Question

In figure 5 , ABCD is a parallelogram . Find the value of a , b, c and d.

Answer 1

Step-by-step explanation:

(7+3+2)a =180(angle sum property of triangle)

12a=180

a=12.5

1. 7a =c(opposite angles are equal)= 87.5°
2. 3a=b(alternate angles)= 37.5°
3. 2a=d(alternate angles)=25°