Respuesta :

Answer:

opposite sides of parallelogram are parellel.

so, angle A and angle D are co interior angle.

(3x+4)°+x°=180°

4x+4=180°

4x=180°- 4

4x=176°

x=176°/4

x = 44°

(3x+4)

=3×44+4

=136°