Rhombi, Rectangles, and Squares

Front

What is a rhombus?

Back

A rhombus is a type of quadrilateral where all four sides are of equal length. Opposite angles are equal, and the diagonals bisect each other at right angles.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides that are equal in length and all angles measuring 90 degrees.

Front

What is a square?

Back

A square is a special type of rectangle and rhombus where all four sides are equal in length and all angles are 90 degrees.

Front

What proves a quadrilateral is a parallelogram?

Back

One pair of opposite sides is congruent and parallel.

Front

What are the properties of the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent (equal in length) and bisect each other.

Front

What is the sum of the interior angles of a quadrilateral?

Back

The sum of the interior angles of a quadrilateral is 360 degrees.

Front

If three angles of a quadrilateral are 110, 120, and 50 degrees, what is the measure of the fourth angle?

Back

The fourth angle measures 80 degrees.

Front

Are the diagonals of a rhombus congruent?

Back

No, the diagonals of a rhombus are not congruent; they are perpendicular and bisect each other.

Front

Can a rectangle be a rhombus?

Back

Sometimes, a rectangle can be a rhombus if it has all sides of equal length, which makes it a square.

Front

What is the relationship between the sides of a square and a rectangle?

Back

All sides of a square are equal, while a rectangle has opposite sides that are equal.