Loyola University Chicago
Math Flix: Pythagorean Theorem Defined
This video [4:06] provides an excellent definition of the Pythagorean Theorem. Watching and listening to the teacher and student interact help to clarify the thinking behind this concept.
Loyola University Chicago
Math Flix: Pythagorean Theorem: Introduction
This video [7:25] provides an excellent introduction to the Pythagorean Theorem. As you watch and listen to the teacher and student interact, it helps clarify the thinking behind applying this concept.
Sophia Learning
Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 1
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 1 of 9 in the series titled "Finding the Missing Side of a 45-45-90 Triangle."
Sophia Learning
Sophia: Finding the Missing Side of a Pythagorean Triple: Lesson 7
This lesson demonstrates how to recognize a Pythagorean triple when you have the lengths of two sides of a right triangle. It is 7 of 10 in the series titled "Finding the Missing Side of a Pythagorean Triple."
Sophia Learning
Sophia: Converse of the Pythagorean Theorem: Lesson 3
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 3 of 5 in the series titled "Converse of the Pythagorean Theorem." [2:58]
Sophia Learning
Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 8
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 8 of 9 in the series titled "Finding the Missing Side of a 45-45-90 Triangle."
Sophia Learning
Sophia: The Diagonal of Rectangular Objects
In this lesson, students will learn the Diagonal of Rectangle Objects by using the Pythagorean Theorem. Students can watch a video tutorial to learn about the concept.
Math Mammoth
Math Mammoth: Pythagorean Theorem and Geometry 1: Area of an Isosceles Triangle
This video demonstrates how to find the area of an isosceles triangle by first determining the altitude using the Pythagorean Theorem. [3:53]
Khan Academy
Khan Academy: Algebra: Applying Radical Equations 2
This video tutorial lesson models solving for the longest diagonal of a cube by setting up and solving equations using the Pythagorean theorem. Some of the calculations include simplifying radicals. [6:56]
Planet Nutshell
Planet Nutshell: Math Shorts: Pythagorean Theorem
Planet Nutshell Math Shorts provide animated videos that explain various math topics. On this site students learn about the pythagorean theorem.
Virtual Nerd
Virtual Nerd: What Is the Pythagorean Theorem?
Video provides an introduction to the Pythagorean theorem and shows how it is used to solve for a missing length on a right triangle. [3:54]
Sophia Learning
Sophia: Pythagorean Theorem
Presents two short videos (under two minutes) explaining the Pythagorean Theorem. Includes short quiz.
Khan Academy
Khan Academy: Geometry: Area, Pythagorean Theorem
This video shows an understanding of the sum of the interior angles of polygons, properties of parallelogram, lateral area of a cone, area of a kite, and circumference of a circle.
Khan Academy
Khan Academy: Triangles: Intro to 30 60 90 Triangles
Explains the special relationship of the lengths of the sides of a 30-60-90 triangle using the Pythagorean theorem.
Khan Academy
Khan Academy: Worked Examples: Geometry: Pythagorean Theorem, Area
Students watch a video tutorial to learn how to solve area problems of composite figures using the Pythagorean Theorem.
Khan Academy
Khan Academy: Triangles: Bhaskara's Proof of Pythagorean Theorem
An elegant visual proof of the Pythagorean Theorem developed by the 12th century Indian mathematician Bhaskara.
Khan Academy
Khan Academy: Triangles: Garfield's Proof of the Pythagorean Theorem
A video explaining how James Garfield's proved the Pythagorean Theorem.
Khan Academy
Khan Academy: Triangles: Another Pythagorean Theorem Proof
Students explore the Pythagorean Theorem by exploring a visual proof of the Theorem as they watch a video tutorial.
Sophia Learning
Sophia: Calculating the Area of a Triangle
This video lesson demonstrates how to calculate the area of a triangle. It includes detailed examples including ones that use the Pythagorean Theorem. Students can check their understanding with an assessment. [10:43]
Sophia Learning
Sophia: Calculating the Perimeter of a Triangle
This video lesson demonstrates how to find the perimeter of triangles. [3:42] The tutorial includes detailed examples. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Converse of the Pythagorean Theorem
Use the Pythagorean theorem to determine if the triangle is a right triangle. Assess learning with a quiz.
Sophia Learning
Sophia: Height of a Pyramid Tutorial
In this video tutorial, determine the height of a pyramid using the Pythagorean theorem. [4:39]
Sophia Learning
Sophia: More Difficult Pythagorean Theorem Examples
Solve the Pythagorean theorem that contains radicals and assess learning with a quiz.
Sophia Learning
Sophia: Proving Lines Are Tangent to Circles
Prove a line is tangent to a circle by using the converse of the Pythagorean theorem. Take a quiz to assess learning.