Question

1. The measure of one angle of a parallelogram is 80°. What are the measures of
the remaining angles ?​

Answer 1

Answer:

80+x = 180

x = 180-80

x =100 degree

so the measure of remaining angle is 100degree

Answer 2

Let ABCD be the parallelogram in which

angle A = 80°

In a parallelogram opposite angles are equal so

angle C = 80° , as angleC is the opposite angle of angleA.

angleA + angleD = 180° (co-interior angles)

80° + angleD = 180°

angleD = 180° - 80°

angleD = 100°

As angleD and angleB are opposite of one another, angleB = 100°.

HOPE IT HELPS UH ✌