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Triangle Sum Theorem
Exterior Angle Theorem
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Pythagorean Theorem & Volume
Examples, solutions, videos, and worksheets to help Grade 8 students learn how to use the Pythagorean theorem to determine an unknown dimension of a cone or a sphere and to find the volume. How to use the lateral length of a cone and the length of a chord of a sphere to solve problems related to volume? Know that a pyramid is a special type of cone with triangular faces and a polygonal base.
The Pythagorean Theorem is primarily used to find the lengths of sides in right triangles, but it can also play a role in solving volume-related problems when the problem involves dimensions or distances that can be broken down into right triangles.
Here’s how you can use the Pythagorean Theorem in various volume-related problems, particularly those that involve diagonals or determining missing dimensions.
For example:
Finding the Height of a Shape to Calculate Volume
For solids such as cones, pyramids, or even some cylinders, the height may not be directly given but can be inferred from the diagonal or slant height using the Pythagorean Theorem. Once you have the height, you can use it to calculate the volume of the solid.
Using the Pythagorean Theorem to Find the Diagonal of a Solid for Volume
In 3D shapes like rectangular prisms, the Pythagorean Theorem helps in calculating the space diagonal or missing dimensions. This diagonal can be used to break down complex volume problems.
Finding the Radius or Height of a Cylinder for Volume
The Pythagorean Theorem can also help with cylinders, especially if you’re given the slant height (in the case of a cone-shaped cylinder) and need to find the radius or height to calculate the volume.
The Pythagorean Theorem can be applied to volume problems in various ways:
When solving volume problems that involve diagonals or heights, the Pythagorean Theorem allows you to break down complex shapes and solve for the necessary components.
Have a look at this video if you need to review how to use the Pythagorean Theorem to calculate volume.
Click on the following worksheet to get a printable pdf document.
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(Answers on the second page.)
Pythagorean Theorem & Volume Worksheet #1
Pythagorean Theorem & Volume Worksheet #2
Pythagorean Theorem & Volume Worksheet #3
Pythagorean Theorem & Volume Worksheet #4
Pythagorean Theorem & Volume Worksheet #5
Pythagorean Theorem & Volume Worksheet #6
Pythagorean Theorem & Volume Worksheet #7
Pythagorean Theorem & Volume Worksheet #8
Pythagorean Theorem, Cones & Spheres
Online Worksheets
Pythagorean Theorem
Find the missing side
Test for right triangle
Pythagorean Theorem Word Problems
Converse Pythagorean Theorem, Types of Triangles
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