Parallelograms, Rectangles, Rhombi and Squares

Front

What do the diagonals of a parallelogram do?

Back

The diagonals of a parallelogram bisect each other.

Front

What is true about the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent.

Front

What is the value of x if m∠CDA = 9x + 3 and m∠EDA = 6x + 15?

Back

x = 4.

Front

In a rhombus, what is the relationship between the angles?

Back

The opposite angles of a rhombus 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

What is a defining property of a square?

Back

A square is a rectangle with all sides equal in length.

Front

How do the diagonals of a rhombus behave?

Back

The diagonals of a rhombus are perpendicular to each other.

Front

What is the relationship between the sides of a rectangle?

Back

Opposite sides of a rectangle are equal in length.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What is the relationship between the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent and bisect each other.