Pythagorean Theorem
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Subject Area: Mathematics (B.E.S.T.) | Grade Level: 8
Lesson Length: 30 minutes
Keywords/Tags: Pythagorean Theorem
Lesson Description: After this lesson, students will be able to determine unknown side lengths in right triangles in real-world and mathematical problems.

  • Other MGSE8.G.7
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Video : Pythagorean's Theorem, How to Find the Unknown Side of a Right Triangle
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Description: This video is about the Pythagorean theorem and how to solve for the unknown side of the right triangle. This video will provide knowledge of the formula and terms such as hypotenuse and leg. It provides examples for students to practice through.
Quiz : Pythagorean Theorem Quiz
Instructions: Please complete this quiz by choosing the correct answer for each question. You can take this quiz as many times needed.
Question #1
Pythagorean Theorem can only be used with right triangles. 
Question #2

What is the diagonal side of the triangle called?  

Question #3

 What is the Pythagorean Theorem formula?

Question #4
A and B are considered the legs and c is considered the hypotenuse. 
Question #5

Given two side lengths of 6 and 8. What is the unknown side length of c?

Question #6

If a equals 12 and c equal 13, what is the value of b? 

Question #7

If a=4 and b=3, what is the value of c?

Question #8

The bottom of a ladder must be placed 6 feet from a wall.  The ladder is 8 feet long.  How far above the ground
does the ladder touch the wall?

Question #9

A baseball diamond is a square with 90 feet sides. What is the shortest distance from first to third? 

Question #10

If a equals 21 and c equals 27, what is the value of b? Round to the nearest whole number.

Description: This quiz will cover information from the video. This quiz will include working on problems, so make sure you have a pencil and paper.
Resources : Pythagorean Theorem Additional Resources
Instructions: Please see additional external resources below. Feel free visit each link to learn more about this lesson.
Math Games
This website takes you to a game where you can practice the Pythagorean theorem.
Applying the Pythagorean Theorem
This resource is a video on the Pythagorean Theorem.
Brainpop Pythagorean Theorem Game
This resource is an interactive game for you to practice.
Description: These are additional resources available to you.