Properties of Parallelograms

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with two sets of parallel sides.

Tags

CCSS.3.G.A.1

Front

In a parallelogram, what can be said about the opposite sides?

Back

The opposite sides of a parallelogram are equal in length.

Tags

CCSS.HSG.CO.C.11

Front

In a parallelogram, what can be said about the opposite angles?

Back

The opposite angles of a parallelogram are equal.

Tags

CCSS.HSG.C.A.3

Front

What happens to the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Tags

CCSS.HSG.CO.C.11

Front

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

Back

The opposite angle is also 70 degrees, and the adjacent angles are 110 degrees each.

Tags

CCSS.HSG.C.A.3

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Tags

CCSS.6.G.A.1

Front

If the base of a parallelogram is 5 cm and the height is 4 cm, what is the area?

Back

Area = 5 cm × 4 cm = 20 cm².

Tags

CCSS.6.G.A.1

Front

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other but are not necessarily equal.

Tags

CCSS.HSG.CO.C.11

Front

In a parallelogram, if one diagonal is 10 cm, what can be said about the other diagonal?

Back

The other diagonal can be of any length; they are not necessarily equal.

Tags

CCSS.HSG.CO.C.11

Front

What is a special type of parallelogram where all sides are equal?

Back

A rhombus is a special type of parallelogram where all sides are equal.

Tags

CCSS.3.G.A.1