Flashcard Polygons, Parallelograms, Rectangles

Front

What is a parallelogram?

Back

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

Front

What are the properties of the diagonals in a parallelogram?

Back

In a parallelogram, the diagonals bisect each other.

Front

If WXYZ is a parallelogram, what can be said about the lengths of sides WX and YZ?

Back

WX is equal in length to YZ.

Front

What is the relationship between opposite angles in a parallelogram?

Back

Opposite angles in a parallelogram 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 the length of one side of a parallelogram is 5 cm, what is the length of the opposite side?

Back

The length of the opposite side is also 5 cm.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

In a parallelogram, if one angle measures 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

Which of the following is NOT a property of a parallelogram? Diagonals bisect each other, Diagonals are congruent, Both pairs of opposite sides are parallel, Both pairs of opposite angles are congruent.

Back

Diagonals are congruent.

Front

If ABCD is a parallelogram and the length of diagonal AC is 10 cm, what can be said about diagonal BD?

Back

Diagonal BD can also be 10 cm, but it is not necessarily equal unless the parallelogram is a rectangle.