## Quadrilateral Summary

Name | Definition | Example |
---|---|---|

Quadrilateral | $4$ sided figure | |

Parallelogram | $2$ pairs of parallel sides | |

Trapezoid | Exactly $1$ pair of parallel sides | |

Rectangle | $4$ right angles | |

Rhombus | $4$ equal sides | |

Square | $4$ equal sides and $4$ right angles |

To learn more about each shape and practice identifying them, keep reading!

## What is a quadrilateral?

A quadrilateral is a $4$ sided closed figure.

These figures are quadrilaterals:

These figures are NOT quadrilaterals:

The $\redD{\text{first}}$ figure is not closed.

The $\goldD{\text{second}}$ figure has $5$ sides

The $\redD{\text{first}}$ figure is not closed.

The $\goldD{\text{second}}$ figure has $5$ sides

## Practice set 1: Identifying quadrilaterals

*Want to learn more about quadrilaterals? Check out these videos:*

Types of quadrilaterals

Quadrilateral properties

Classifying quadrilaterals

Types of quadrilaterals

Quadrilateral properties

Classifying quadrilaterals

### What is a parallelogram?

A parallelogram is a quadrilateral with $2$ pairs of parallel sides. In these figures, sides of the same color are parallel to each other.

### Practice set 2: Identifying parallelograms

## What is a trapezoid?

A trapezoid is a quadrilateral with

**exactly $\greenD{1 \text{ pair of parallel sides}}$.**## What is a rectangle?

A rectangle is a quadrilateral with $4$ right angles.

## What is a rhombus?

A rhombus is a quadrilateral with $4$ equal sides.

## What is a square?

A square is a quadrilateral with $4$ equal sides and $4$ right angles.

## Practice set 7: Pulling it all together

*Want to try more problems like this? Check out these exercises:*

Identify quadrilaterals

Quadrilateral types

Categorize quadrilaterals