Question

There are several characteristics of a parallelogram that can prove a quadrilateral is a parallelogram. Which characteristic would prove a quadrilateral is a parallelogram?
1.Opposite angles are supplementary
2.Adjacent angles are complementary
3.Adjacent angles are supplementary
4.Opposite angles are equal

Answer 1

Answer: its 4

Step-by-step explanation:

Answer 2

The answer would be b