Flashcard 8.0-8.2 Polygons and Parallelograms

Front

What type of quadrilaterals are parallelograms?

Back

All parallelograms are quadrilaterals.

Front

In a parallelogram, what do the diagonals do to each other?

Back

In a parallelogram, diagonals bisect each other.

Front

What can be said about the opposite angles of a parallelogram?

Back

The opposite angles of a parallelogram are congruent.

Front

Solve for x if the angles are 90 and x: 90 + x = 102

Back

x = 12.

Front

What is true about consecutive angles in a parallelogram?

Back

In a parallelogram, consecutive angles are supplementary.

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 is a defining property of a parallelogram?

Back

A parallelogram has opposite sides that are equal and parallel.

Front

How do the diagonals of a parallelogram compare in length?

Back

The diagonals of a parallelogram are not necessarily equal in length.

Front

What is the relationship between adjacent angles in a parallelogram?

Back

Adjacent angles in a parallelogram are supplementary.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.