Parallelograms Properties

Front

What is a parallelogram?

Back

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

Front

What are the properties of opposite angles in a parallelogram?

Back

In a parallelogram, opposite angles are equal.

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

What is the relationship between the diagonals of a parallelogram?

Back

The diagonals of a parallelogram bisect each other.

Front

In parallelogram ABCD, if AB = 5 cm and CD = 5 cm, what can be said about the lengths of BC and DA?

Back

BC and DA are also equal in length, so BC = 5 cm and DA = 5 cm.

Front

What type of angles are formed by the diagonals of a parallelogram?

Back

The diagonals of a parallelogram form two pairs of equal angles.

Front

In parallelogram ABCD, if angle A = 60 degrees, what is angle C?

Back

Angle C is also 60 degrees because opposite angles are equal.

Front

What is the formula for the area of a parallelogram?

Back

The area of a parallelogram is given by the formula: Area = base × height.

Front

If the base of a parallelogram is 10 cm and the height is 5 cm, what is the area?

Back

The area is 10 cm × 5 cm = 50 cm².