Watch this tutorial to see how to find the volume of a rectangular pyramid. [4:47]

Tutorial provides an introduction to rectangles and explains their special properties. [5:56]

Video tutorial takes a look at parallelograms and explores what kinds of quadrilaterals can also be called parallelograms. [7:17]

Watch this tutorial to learn about quadrilaterals and their special types. [4:52]

[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on how to find the area and perimeter of a rectangle.

[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of squares and rectangles.

This video identifies and defines concave quadrilaterals, convex quadrilaterals, trapezoids, parallelgrams, rectangles, rhombi, and squares.

In this video tutorial, the instructor demonstrates how to determine how to calculate the area of a rectangle and assess knowledge with a quiz. [3:01]

This video tutorial describes how to classify quadrilaterals using key characteristics such as parallel sides and right angles. [4:27]

Quadrilaterals are explored in this video lesson. The tutorial describes the characteristics of various quadrilaterals. Students can check their understanding with an assessment. [6:17]

This video lesson describes the characteristics of rectangles and provides examples of how to find area, perimeter, diagonals, and angle measurements. [7:00]

Explore how to find the area of a parallelogram using triangles and rectangles, then assess learning with a quiz.

This lesson provides a video that shows examples of various quadrilaterals in the real world. A notes sheet follows describing the characteristics of each quadrilateral and how to find the area of several figures. [3:37]

This QuickTime movie provides an opportunity to learn about the characteristics of a rectangle. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.

Quadrilaterals are figures with four sides and there are many different types. Watch this tutorial and try to figure out the name for any given quadrilateral. [11:03]

This tutorial will show you how to find the missing side length of a rectangle if you know the perimeter and the other side length. [5:37]

Gain a basic understanding of quadrilaterals by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [9:49]

This video demonstrates an understanding of perimeter, volume, surface area, area, and Pythagorean theorem.

Sal figures out the width of a dog pen.

Learn to identify quadrilaterals such as kites, trapezoids, parallelograms, rhombuses, rectangles, and squares by line and angle type.

Lindsay from Khan Academy finds the missing side length on a rectangle when given the area of the rectangle. [3:03]

Following this lesson, you'll know that when both diagonals are drawn in on a rectangle, two pairs of congruent isosceles triangles are formed. It is 3 of 5 in the series titled "Double Diagonals of a Rectangle."

Following this lesson, you'll know that when both diagonals are drawn in on a rectangle, two pairs of congruent isosceles triangles are formed. It is 4 of 5 in the series titled "Double Diagonals of a Rectangle."

Following this lesson, you'll know that when both diagonals are drawn in on a rectangle, two pairs of congruent isosceles triangles are formed. It is 1 of 5 in the series titled "Double Diagonals of a Rectangle."