## Unit 9: Quadrilaterals, Area, Surface Area, and Volume

▼

### Overview

*In this unit, you will study quadrilaterals. Specifically, you will look at quadrilaterals with special properties—parallelograms, rectangles, rhombi, squares, and trapezoids. You will compare and contrast the various quadrilaterals, and use them to solve real world applications.*

**Developed By: **Gretchen Gibson

If you have trouble viewing the video, click here to download.

## Pre-Unit Assessment

## Lesson 1

Polygons, Quadrilaterals, and Parallelograms

## Lesson 2

Proving a Quadrilateral is a Parallelogram

## Lesson 3

Rectangles, Rhombi, and Squares

## Lesson 4

Trapezoids and Using Coordinate Geometry to Identify Quadrilaterals

## Lesson 5

Area of Two-Dimensional Figures

## Lesson 6

Surface Area of Three-Dimensional Figures

## Lesson 7

Volume of 3-Dimensional Figures