Instructional Video
Sophia Learning

Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 5

9th - 10th
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 5 of 9 in the series titled "Finding the Missing Side of a 45-45-90 Triangle."
Instructional Video
Sophia Learning

Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 6

9th - 10th
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 6 of 9 in the series titled "Finding the Missing Side of a 45-45-90 Triangle."
Instructional Video
Sophia Learning

Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 9

9th - 10th
In this lesson, you'll learn how to use the lengths of two sides of a triangle and the ratio of the side lengths to find the length of the missing side. It is 9 of 9 in the series titled "Finding the Missing Side of a 45-45-90 Triangle."
Instructional Video
Sophia Learning

Sophia: Finding the Missing Side of a Pythagorean Triple: Lesson 2

9th - 10th
This lesson demonstrates how to recognize a Pythagorean triple when you have the lengths of two sides of a right triangle. It is 2 of 10 in the series titled "Finding the Missing Side of a Pythagorean Triple."
Instructional Video
Sophia Learning

Sophia: Finding the Missing Side of a Pythagorean Triple: Lesson 3

9th - 10th
This lesson demonstrates how to recognize a Pythagorean triple when you have the lengths of two sides of a right triangle. It is 3 of 10 in the series titled "Finding the Missing Side of a Pythagorean Triple."
Instructional Video
Sophia Learning

Sophia: More Difficult Pythagorean Theorem Examples: Lesson 4

9th - 10th Standards
This lesson will provide more advanced practice examples that apply the Pythagorean Theorem to solve for an unknown side of a right triangle. It is 4 of 5 in the series titled "More Difficult Pythagorean Theorem Examples."
Instructional Video
Sophia Learning

Sophia: More Difficult Pythagorean Theorem Examples: Lesson 5

9th - 10th
This lesson will provide more advanced practice examples that apply the Pythagorean Theorem to solve for an unknown side of a right triangle. It is 5 of 5 in the series titled "More Difficult Pythagorean Theorem Examples."
Instructional Video
Sophia Learning

Sophia: Converse of the Pythagorean Theorem: Lesson 4

9th - 10th
This lesson will demonstrate how to use the converse of the Pythagorean Theorem to determine if three side lengths of a triangle form a right triangle. It is 4 of 5 in the series titled "Converse of the Pythagorean Theorem." [4:27]
Instructional Video
Sophia Learning

Sophia: Converse of the Pythagorean Theorem: Lesson 1

9th - 10th
This lesson will demonstrate how to use the converse of the Pythagorean Theorem to determine if three side lengths of a triangle form a right triangle. It is 1 of 5 in the series titled "Converse of the Pythagorean Theorem." [3:16]
Instructional Video
Sophia Learning

Sophia: Converse of the Pythagorean Theorem: Lesson 5

9th - 10th Standards
This lesson will demonstrate how to use the converse of the Pythagorean Theorem to determine if three side lengths of a triangle form a right triangle. It is 5 of 5 in the series titled "Converse of the Pythagorean Theorem." [8:28]
Instructional Video
Sophia Learning

Sophia: Finding the Missing Angle of Right Triangle: Lesson 1

9th - 10th
Following this lesson, the angle measure of one non-right angle of a right triangle, and the right angle symbol in the right angle of the triangle, you'll be able to determine the value of the missing angle. It is 1 of 9 in the series...
Instructional Video
Sophia Learning

Sophia: More Difficult Pythagorean Theorem Examples: Lesson 1

9th - 10th
This lesson will provide more advanced practice examples that apply the Pythagorean Theorem to solve for an unknown side of a right triangle. It is 1 of 5 in the series titled "More Difficult Pythagorean Theorem Examples."
Instructional Video
Sophia Learning

Sophia: Pythagorean Theorem

9th - 10th Standards
We introduce the Pythagorean Theorem and show how it can be used to help solve real world problems. Student watch a video tutorial and then take an online quiz.
Instructional Video
Sophia Learning

Sophia: Pythagorean Theorem

9th - 10th Standards
We introduce the Pythagorean Theorem and show how it can be used to help solve real world problems. Student watch a video tutorial and then take an online quiz.
Instructional Video
Math Mammoth

Math Mammoth: Pythagorean Theorem and Geometry 2: Diagonal of a Square

7th
This video demonstrates how to calculate the length of a square's diagonal using the Pythagorean Theorem. [1:29]
Instructional Video
Math Mammoth

Math Mammoth: Pythagorean Theorem and Geometry 3: Volume of a Triangular Prism

7th
This video demonstrates how to find the volume of a triangular prism by first determining the altitude of the isosceles triangle base using the Pythagorean Theorem, and then inserting it into the volume formula. [2:46]
Instructional Video
Shmoop University

Shmoop: Pythagorean Theorem

9th - 10th Standards
This resource provides a short video about Pythagorean Theorem. [1:39]
Instructional Video
Sophia Learning

Sophia: Coordinates on the Unit Circle: Lesson 1

10th - 12th
The x and y coordinates of the unit circle are discussed here, in the context of right triangles. This lesson [3:19] is 1 of 5 in the series titled "Coordinates on the Unit Circle."