Parallelograms, Rectangles, Rhombi, Squares, Flashcard #2

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. Opposite sides are equal in length.

Front

Define 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 where all four sides are equal and all angles are right angles.

Front

How do you find 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 equal in length and bisect each other.

Front

What is the formula for the area of a square?

Back

Area = side².

Front

If the sides of a rhombus are 10 cm, what is the perimeter?

Back

Perimeter = 4 × side = 4 × 10 cm = 40 cm.

Front

How do you find the measure of an angle in a parallelogram?

Back

Opposite angles are equal, and consecutive angles are supplementary (add up to 180°).

Front

What is the significance of the diagonals in a rhombus?

Back

The diagonals of a rhombus bisect each other at right angles.