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## This page provides a list of educational videos related to Dimensions. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Dimensions.

# Defined and undefined matrix operations

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By Khan Academy

Sal discusses the conditions of matrix dimensions for which addition or multiplication are defined.

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# Multiplying a matrix by a matrix

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By Khan Academy

Sal gives an example of a multiplication of two matrices that don't have the same dimensions.

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# Defined and undefined matrix operations

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By Khan Academy

Sal gives an example of a multiplication of two matrices that don't have the same dimensions.

**In this video**

# Example Problem - Multiplying Matrices with Different Dimensions

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By Khan Academy

The instructor uses an electronic chalkboard to demonstrate Matrix Multiplication. At the time of this posting from WatchKnow, this video was a Featured Video on YouTube. The instructor, Sal Khan, continues from Part 1 on multiplying matrices. The student or educator may want to open the video to 'full screen' as the instructor is using a black background and the writing is small.

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# Linear equation word problems

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By Khan Academy

Here's a nifty word problem in which we find the dimensions of a garden given only the perimeter. Let's create an equation to solve!

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# Linear equation word problems

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By Khan Academy

Here's a nifty word problem in which we find the dimensions of a garden given only the perimeter. Let's create an equation to solve!

**In this video**

# Linear equation word problems

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By Khan Academy

Here's a nifty word problem in which we find the dimensions of a garden given only the perimeter. Let's create an equation to solve!

**In this video**

# Rectangle area as product of dimensions same as counting unit squares | Pre-Algebra

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By Khan Academy

Use unit squares to see why multiplying side-lengths can also find the area of rectangles. ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

**In this video**

# Rectangle area as product of dimensions same as counting unit squares

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By Khan Academy

Use unit squares to see why multiplying side-lengths can also find the area of rectangles. ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

**In this video**

# Volume with unit cubes 1

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By Khan Academy

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume.

**In this video**

# Volume with unit cubes 1

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By Khan Academy

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume.

**In this video**

# Volume with fractions

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By Khan Academy

Learn how to find the volume of a rectangular prism that has fractional side lengths. The prism in this video has dimensions 3/5 by 1 1/6 by 3/7.

**In this video**

# Volume with unit cubes 1

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By Khan Academy

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume.

**In this video**

# Volume with unit cubes 1

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By Khan Academy

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# Volume with unit cubes 1

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By Khan Academy

**In this video**

# Volume with unit cubes 1

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By Khan Academy

**In this video**

# Volume with unit cubes 1

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By Khan Academy

**In this video**

# Volume with unit cubes 1

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By Khan Academy

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# Quadratic Model: Enclosing a field with a fence

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By SuperMathPrincess

How to create a quadratic function that represents the area of a rectangular field as a function of the width of the field, given a specific amount of fencing to enclose the field. Also includes how to find the maximum area and the dimensions of the field needed to obtain that maximum area, both by hand and by using a TI-83 plus graphing calculator.

**In this video**

# Introduction to Conversions in Physics

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By Flipping Physics

This video includes the basics of doing conversions, why conversions work, conversions with squares and fractions. Includes several examples Times of the examples: 0:59 - 11 millimeters to meters 2:54 - 4.2 cm to m 3:35 - 17 g to kg 4:32 - 14 m/s to km/hr 7:40 - 12.2 mm^2 to m^2 9:50 - 120 km/hr^2 to m/s^2 Want Lecture Notes? Next Video: Introduction to Accuracy and Precision (includes Relative Error) Previous Video: Introduction to Base Dimensions and Your Friends

**In this video**