Khan Academy
Khan Academy: Geometry: 45 45 90 Triangle Side Ratios
In this video tutorial [5:42], the instructor explains the ratio of the lengths of the sides in a 45-45-90 triangle using the Pythagorean theorem. Beginning of video concludes a discussion from a previous video on the ratio of the...
Khan Academy
Khan Academy: Geometry: Intro to 30 60 90 Triangles
Solves an example problem in which the length of the hypotenuse is known and the length of a side must be determined. Explains the special relationship of the lengths of the sides of a 30-60-90 triangle using the Pythagorean theorem....
Khan Academy
Khan Academy: Geometry: 45 45 90 Triangles
In this video tutorial [9:30], the instructor explains the special relationship of the lengths of the sides of a 45-45-90 triangle. Solves an example problem in which the length of a side is known and the length of the hypotenuse must be...
Khan Academy
Khan Academy: Pythagorean Theorem Ii
The video tutorial lesson [9:36] explains how to use the Pythagorean theorem to find the length of the hypotenuse or the length of one of the legs. Introduces the relationship between the length of the legs and the length of the...
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 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."
Khan Academy
Khan Academy: Triangles: 45 45 90 Triangle Side Ratios
Showing the ratios of the sides of a 45-45-90 triangle in this short video.
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: Triangles: 45 45 90 Triangles
Students are provided an introduction to 45-45-90 triangles by watching a video tutorial.
Sophia Learning
Sophia: Two Special Triangles
In this video tutorial, explore the 45-45-90 and 30-60-90 triangles and what the properties of each are. Check understanding with a quiz. [6:35]
Khan Academy
Khan Academy: Triangles: Pythagorean Theorem Ii
More Pythagorean Theorem examples. Introduction to 45-45-90 triangles.
Sophia Learning
Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 2
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 2 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 45 45 90 Triangle: Lesson 3
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 3 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 45 45 90 Triangle: Lesson 5
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."
Sophia Learning
Sophia: Finding the Missing Side of a 45 45 90 Triangle: Lesson 6
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."
Sophia Learning
Sophia: Two Special Triangles: Lesson 3
This lesson explains what 45-45-90 and 30-60-90 right triangles are and discusses their properties. It is 3 of 5 in the series titled "Two Special Triangles."
Sophia Learning
Sophia: Two Special Triangles: Lesson 2
This lesson explains what 45-45-90 and 30-60-90 right triangles are and discusses their properties. It is 2 of 5 in the series titled "Two Special Triangles."