Question

find ( mangle bpc ).
( mangle bpc=)

Explanation:

Step1: Use vertical angles property

Vertical angles are equal. $\angle BFC$ and $\angle EFA$ are vertical angles.

Step2: Calculate $\angle EFA$

Since $\angle AFD = 90^{\circ}$ and $\angle EFD=28^{\circ}$, then $\angle EFA=\angle AFD+\angle EFD$.
$$\angle EFA = 90^{\circ}+ 28^{\circ}=118^{\circ}$$

Answer:

$118$