Volume of Cone - 7th Grade Math

In this video you will learn how to find the volume of a cone. Volume is the total capacity that a three dimensional shape can hold. A cone is a three dimensional shape. The formula for finding the volume of a cone is 1/3 x pi x radius squared x height. Watch the 7th grade math video for more on this topic.

Volume of Cone = 1/3(π × r2×h)

Volume of Cone - 7th Grade Math

Volume of Pyramid - 7th Grade Math

In this video you will learn how to find the volume of a pyramid. Volume is the amount of capacity a three dimensional shape can hold. A pyramid is a 3D shape. This 7th grade math video will teach you how to find the volume with step by step instructions.

The formula for volume of Pyramid is

Volume = 1/3 ( LxWxH)

Volume of Pyramid - 7th Grade Math

Surface Area of a Cylinder - 7th Grade Math



 

In this video you will learn how to find the surface area of a cylinder. A cylinder is a three dimensional shape. To find the surface area of a cylinder, use the formula 2 x pi x radius x height + 2 x pi x radius squared. Radius the value of the circle that stretches from the center of the circle to any end. Pi has an approximate value of 3.14.





  

 

Surface Area of a Cylinder - 7th Grade Math

Surface Area of a Pyramid - 7th Grade Math

In this video you will learn how to find the surface area of a pyramid. Surface is the total area of a three dimensional shape. A pyramid is  3D shape consisting of triangles and a rectangular base ( sometimes square base). The formula is to find the area of the 2D shapes within the 3D shape ad add to find the surface area.



Surface Area of a Pyramid - 7th Grade Math

Surface Area of Prisms - 7th Grade Math

In this video you will learn how to find the surface area of a rectangular prism and a triangular prism. Surface area is the total area of the two dimensional shapes which make up a three dimensional shape. The formula for finding the surface area of a rectangular prism and a triangular prism is to first find the area of the two-dimensional shapes and then add to find the surface area.
Check out the video below for more indormation...

Surface Area of Prisms - 7th Grade Math

Surface Area of a Sphere - 7th Grade Math

 In this video you will learn how to find the surface area of a sphere. A sphere is a three dimensional shape. Surface area is the total area of a three dimensional object.

The formula for finding the surface are of a a sphere is 4 x pi x radius squared. The radius is the line that stretches form the center of the sphere to any end of the sphere.
Check out the video below for more information...

Surface Area of Sphere =4πR²

Surface Area of a Sphere - 7th Grade Math

Volume of a Rectangular Prism - 7th Grade Math

In this video, you will learn how to find the volume of a rectangular prism. Volume is how much space a three dimensional shape occupies. You will learn how to find the volume using the formula LxWxH. Length multiplied by width multiplied by height. A rectangular prism is a three dimensional shape which has 6 faces, 8 vertices, and 12 edges.

Volume of a Rectangular Prism - 7th Grade Math

Area of Triangles - 7th Grade Math

This video explains how to find the area of triangles. The formula for finding the area of any triangle is 1/2xBxH. That means you have to multiply the base by the height and divide by two to get the area. The formula is the same for all types of triangles. Learn how to use the formula for area of triangle to calculate the area of the triangle shown in the example in the video.

Area of Triangles - 7th Grade Math

Volume of Cube - 7th Grade Math

In this video, You will learn how to find the Volume of Cube.
Cube Definition:
A cube is three dimensional shape which has all the sides such as length, height and width same in measurement.

To find the Volume of a cube, follow the formula which is L x W x H.
L stands for length.
W stands for width.
H stands for height.
In a cube all of the sides are of the same measurement and so we will multiply the same measurement three times.

Volume of Cube - 7th Grade Math

What are Corresponding Angles -7th Grade Math

Corresponding angles are angles that are in the same location at each intersection of lines. For example, let's say that a pair of parallel lines are being intersected by a transversal line. The two angles on the same location for each intersection will be known as corresponding angles. Also if the two lines are parallel then the corresponding angles will be of the same measurement.

What are Corresponding Angles -7th Grade Math

How to convert Percent to Fraction - 7th Grade Math

In this video, you will learn how to convert a percent into a fraction. A percent is a number out of 100. To change a percent into a fraction, write the number with a denominator of 100. Then simplify and you have your fraction.

Convert Percent to Fraction in Math

Converting Decimals into Fractions - 7th Grade Math

In this video, you will learn how to convert decimals into fractions. In order to convert a decimal into a fraction simply replace the decimal point with a 1 and add zeroes depending upon the number of digits in the decimal. This will be your denominator. The numerator will simply be the number.

How to Convert Decimals to Fractions in Math

7th Grade Math - Unit Rate Word Problem

In this video you will learn the difference between Rate and Unit Rate. You will learn how to solve word problems dealing with unit rate. In the problem you will also find unit rate. This video is a complete walk through of unit rate so it is good for people who don't know it and want to learn it.

Rate and Unit Rate

7th Grade Math - Rate and Unit Rate

In this video you will learn about rates and unit rates. Rates are ratios that have two quantities and are measured in different units. Unit rates must have a denominator of one and are simply per 'unit'.

Rate and Unit Rate

7th Grade Math - Word Problem for Equivalent Ratios

In this video you will learn about equivalent ratios through word problems. Equivalent ratios are just ratios that are equal to one another. Ratios are just a comparison between two numbers.

Equivalent Ratios Word Problem

7th Grade Math - Compare Ratios by using Word Problem

In this video you will learn how to compare ratios using word problems. A ratio is a comparison between two numbers. When comparing two ratios you are simply trying to find out whether the are equal to one another.

Compare Ratios in Word Problem

7th Grade Math - Simplifying Ratios

In this video, you will learn how to simplify ratios. A ratio is a comparison between two numbers. To simplify a ratio, you can put it in the fractional form of a ratio, then divide both the numerator and the denominator by the highest common factor of both the numerator and the denominator and you will have your simplified ratio.

Simplify Ratios

7th Grade Math - What are Equivalent Ratios and How to Prove If Ratios are Equivalent

In this video, you will learn about equivalent ratios and how to prove if the ratios are equivalent. Ratios are a comparison between two numbers. Equivalent means that they are equal to one another. To check whether they are equivalent, you can use cross products.

Equivalent Ratios

7th Grade Math - What are Ratios and How to Write Ratios

In this video, you will learn how to write a ratio and also what a ratio is. A ratio is just a comparison between numbers. There are three different ways to write ratios and this video will go through writing each.

Introduction To Ratios and How to Write Ratios

7th Grade Math - Convert Rational Numbers into Decimals

In this video you will learn how to change rational numbers into decimals. Rational numbers are numbers that can be made into simple fractions. in order to change a rational number into a decimal, first turn into a fraction, then divide numerator by denominator to get the decimal equivalent.

Convert Rational Number into Decimals