Respuesta :

When referring to angles, I will use top, middle and bottom.

The middle angle is 180 - 28 - 105 = 37°

The top angle is 180 - 37 - 82 = 61°

The bottom angle is 180 - 28 - (180 - 82) = 54°

Answer:

The measure of angle B is 54°. The measure of angle A is 51°. The measure of angle AFE is 47°.