# Pythagorean Theorem 1

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Taught by YourMathGal
• Currently 4.0/5 Stars.
4876 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, we learn about the Pythagorean theorem, one of the most famous theorems in math, and how to use it to find the length of a missing side of a right triangle. The theorem states that if we have a right triangle and we have two legs, A and B, then the sum of the squares of the legs is the same as the square of the hypotenuse. We are shown how to use this theorem to find the exact and approximate lengths of the missing sides of two right triangles. Finally, we learn how to simplify the square root of a number to make it easier to work with.

Lesson Description:

Find side of a right triangle using the Pythagorean Theorem.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
• What is the Pythagorean Theorem?
• If a right triangle has one leg of length 5 inches and a hypotenuse of 8 inches, what is the length of the other side?
• If two legs of a right triangle are 3 feet and 5 feet, how can you use the Pythagorean Theorem to find the length of the hypotenuse?
• How can you use the Pythagorean Theorem to find the length of a missing side of a right triangle?
• What does a^2 + b^2 = c^2 mean?
• How do you solve x^2 + 5^2 = 8^2?
• How do you solve 3^2 + 5^2 = h^2?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson explains the Pythagorean Theorem and how it can be used to find missing lengths of right triangles. A couple of example problems are shown in this lesson and all steps involved are explained. This is a great introduction to the Pythagorean Theorem.
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