6.1.2 Properties of Parallelograms

Question 1

parallelogram

Answer 1

a quadrilateral with two pairs of parallel sides

Question 2

Theorem

Answer 2

If a quadrilateral is a parallelogram, then its opposite sides are congruent.

Question 3

Theorem

Answer 3

If a quadrilateral is a parallelogram, then its opposite angles are congruent.

Question 4

Theorem

Answer 4

If a quadrilateral is a parallelogram, then its consecutive angles are supplementary.

Question 5

Theorem

Answer 5

If a quadrilateral is a parallelogram, then its diagonals bisect each other.