Parallelograms, Rectangles, Rhombi and Squares

Front

What is a parallelogram?

Back

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

Front

What are the properties of a rectangle?

Back

A rectangle is a parallelogram with four right angles and opposite sides that are equal in length.

Front

What defines a rhombus?

Back

A rhombus is a parallelogram with all four sides of equal length.

Front

What is a square?

Back

A square is a special type of rectangle and rhombus that has all sides equal and all angles right angles.

Front

In a parallelogram, what is true about opposite angles?

Back

Opposite angles in a parallelogram are equal.

Front

What is the relationship between consecutive angles in a parallelogram?

Back

Consecutive angles in a parallelogram are supplementary, meaning they add up to 180 degrees.

Front

How do you find the measure of an angle in a rhombus if one angle is known?

Back

If one angle of a rhombus is known, the other angles can be found since opposite angles are equal and consecutive angles are supplementary.

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: Area = length × width.

Front

What is the formula for the area of a rhombus?

Back

The area of a rhombus can be calculated using the formula: Area = (diagonal1 × diagonal2) / 2.

Front

What is the significance of the diagonals in a rectangle?

Back

In a rectangle, the diagonals are equal in length and bisect each other.