Properties of parallelograms

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) with opposite sides that are parallel and equal in length.

Tags

CCSS.3.G.A.1

Front

What are the properties of a parallelogram?

Back

1. Opposite sides are congruent. 2. Opposite angles are congruent. 3. The diagonals bisect each other. 4. Consecutive angles are supplementary.

Tags

CCSS.HSG.CO.C.11

Front

How do you find the measure of an angle in a parallelogram?

Back

To find the measure of an angle in a parallelogram, use the property that opposite angles are equal and consecutive angles are supplementary.

Tags

CCSS.HSG.CO.C.11

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Tags

CCSS.HSG.CO.C.11

Front

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

Back

The sum of the interior angles of a parallelogram is 360 degrees.

Front

If one angle of a parallelogram is 70°, what are the measures of the other angles?

Back

The opposite angle is also 70°, and the consecutive angles are 110° each.

Tags

CCSS.HSG.C.A.3

Front

What is a rectangle?

Back

A rectangle is a parallelogram with four right angles.

Tags

CCSS.5.G.B.4

Front

What is a rhombus?

Back

A rhombus is a parallelogram with all four sides of equal length.

Tags

CCSS.3.G.A.1

Front

What is the difference between a rectangle and a rhombus?

Back

A rectangle has four right angles, while a rhombus has all sides equal but not necessarily right angles.

Tags

CCSS.5.G.B.4

Front

What is true about the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent.

Tags

CCSS.HSG.CO.C.11