Exploring Properties of Parallelograms

A trapezoid is _____ a parallelogram.

• rarely

• never

• sometimes

• always

A square is _____ a rhombus.

• never

• sometimes

• rarely

• always

A parallelogram is _____ a rectangle.

• rarely

• never

• sometimes

• always

In a parallelogram, opposite sides are _____.

• perpendicular

• congruent

• none of the above

• parallel

Consecutive angles in a parallelogram are _____.

• supplementary

• none of the above

• complementary

• equal

The diagonals of a parallelogram _____.

• are perpendicular

• bisect each other

• none of the above

• are equal

If three or more parallel lines cut off congruent segments on one transversal, they cut off congruent segments on _____.

• none of the above

• every transversal

• some transversals

• no transversals

If a parallelogram has one right angle, then it has _____.

• three right angles

• two right angles

• four right angles

• one right angle

In a parallelogram, if one angle is 90 degrees, the angle opposite to it is _____.

• 90 degrees

• none of the above

• 45 degrees

• 180 degrees

If ABCD is a parallelogram and AB = 30, then CD is _____.

• 15

• 30

• none of the above

• 60