Understanding Parallelograms

What is a defining characteristic of a parallelogram?

• Opposite sides are parallel

• All angles are right angles

• Diagonals are perpendicular

• All sides are equal

Which property is true for the opposite angles of a parallelogram?

• They are supplementary

• They are complementary

• They are congruent

• They are right angles

What happens to the diagonals of a parallelogram?

• They form right angles

• They are equal in length

• They are perpendicular

• They bisect each other

If one angle of a parallelogram is 68 degrees, what is the measure of its consecutive angle?

• 90 degrees

• 180 degrees

• 112 degrees

• 68 degrees

In a parallelogram, if one side is 15 units, what is the length of the opposite side?

• 15 units

• 30 units

• 7.5 units

• Cannot be determined

How do you find the measure of an angle in a parallelogram if you know the measure of its opposite angle?

• Divide by 2

• It is equal to the opposite angle

• Subtract from 180 degrees

• Add 90 degrees

What is the relationship between alternate interior angles in a parallelogram?

• They are equal

• They are supplementary

• They are complementary

• They are right angles

If a diagonal of a parallelogram is bisected, what can be said about the segments?

• They form a right angle

• They are parallel

• They are perpendicular

• They are equal

In a parallelogram, if one angle is 134 degrees, what is the measure of the adjacent angle?

• 46 degrees

• 180 degrees

• 90 degrees

• 134 degrees

What is the sum of the interior angles of a parallelogram?

• 540 degrees

• 720 degrees

• 360 degrees

• 180 degrees