Parallelograms

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

What property do the diagonals of a parallelogram have?

Back

The diagonals of a parallelogram bisect each other.

Front

What can be said about opposite angles in a parallelogram?

Back

Opposite angles in a parallelogram are equal.

Front

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

Back

Consecutive (same-side) interior angles in a parallelogram are supplementary.

Front

If one angle of a parallelogram measures 48 degrees, what is the measure of the opposite angle?

Back

The opposite angle also measures 48 degrees.

Front

If one angle of a parallelogram measures 84 degrees, what is the measure of the adjacent angle?

Back

The adjacent angle measures 96 degrees (since they are supplementary).

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

How do you find the length of the sides of a parallelogram if you know the lengths of the diagonals and the angle between them?

Back

You can use the formula: a = (d1^2 + d2^2 - 2*d1*d2*cos(angle))/2, where d1 and d2 are the lengths of the diagonals.

Front

What is the relationship between the lengths of the sides of a parallelogram?

Back

Opposite sides of a parallelogram are equal in length.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.