Question

please tell today is my exam

Answer 1

since A+C =180
so first option is correct

Answer 2

• Since ABCD is a parallelogram.
• So
• AB║CD
• AD║BC

Let the angle A be x.

Then

Angle  D = 180-x [ AB║CD]

Angle C = 180 - ( 180 -x)

              = 180 - 180 + x = x

So ,

A - C = x-x = 0°