7.2 properties of parallelograms

Front

What do we know about the diagonals of ALL parallelograms?

Back

The diagonals of all parallelograms bisect each other.

Front

What is a property of opposite sides in a parallelogram?

Back

Opposite sides of a parallelogram are congruent.

Front

What is a property of opposite angles in a parallelogram?

Back

Opposite angles of a parallelogram are congruent.

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 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.

Front

How do you find the length of a side in a parallelogram given the lengths of the other sides?

Back

In a parallelogram, opposite sides are equal in length.

Front

What is the relationship between the diagonals of a rectangle (a type of parallelogram)?

Back

The diagonals of a rectangle are congruent.

Front

If the lengths of the diagonals of a parallelogram are equal, what type of parallelogram is it?

Back

It is a rectangle.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

If the base of a parallelogram is 5 cm and the height is 3 cm, what is the area?

Back

Area = 5 cm × 3 cm = 15 cm².