Question

in a parallelogram ABCD ,the measure of angle B is 120° find the measure of angle C and angle D.​

Answer 1

Answer:

Step-by-step explanation:

Opposite angles of a parallelogram are equal and consecutive interior angles are equal.

Which means if A, B, C and D are the angles and B is 120°.

Therefore, angle D must be 120° too as they are opposite angles.

And angle C must be 60° as sum of consecutive interior angles is 180°