Tarver Academy
Finding Midpoint & Distance in the Coordinate Plane - GEOMETRY 1.6
In This Episode, Tyler Teaches Us About Finding Midpoint & Distance in the Coordinate Plane - GEOMETRY 1.6
Professor Dave Explains
The Easiest Way to Memorize the Trigonometric Unit Circle
The most logical way to memorize the unit circle for good!
Science360
The Pythagorean Theorem - Science of NFL Football
"Science of NFL Football" is a 10-part video series funded by the National Science Foundation and produced in partnership with the National Football League. NBC's Lester Holts explores the path a defender must take in order to tackle a...
Curated Video
Creating Right Triangles on a Coordinate Plane
In this video, the teacher explains how to create a right triangle on a coordinate plane using two points that form a diagonal line segment. They review the properties of right triangles and the Pythagorean theorem, and demonstrate...
Curated Video
Using the Area of Squares Proof to Relate Side Lengths of a Right Triangle
In this lesson, students will learn about the relationship between the side lengths of a right triangle using the area of squares proof. They will understand that the sum of the areas of the squares formed by the two legs of a right...
Professor Dave Explains
The Distance Formula: Finding the Distance Between Two Points
A derivation of the distance formula.
Curated Video
Finding Distances Between Points on a Plane Using the Pythagorean Theorem
This video explains how to find the distance between two points on a plane without using a measuring tool. It introduces the Pythagorean theorem and demonstrates how to create a right triangle using the given points. By applying the...
Khan Academy
SAT Prep: Test 5 Section 7 Part 5
Geometry problems on the SAT are often the most difficult for students to solve, let alone master. Focusing on several geometry-related skills (as well a few algebra problems), Sal makes this lesson a valuable resource for viewers who...
Khan Academy
SAT Prep: Test 1 Section 6 Part 1
Here, Sal begins section 6 on page 407 of The Official SAT Study Guide, focusing on problems 1-4 in this video. He clarifies that SAT questions are "tricky, but really fast" problems that shouldn't take a lot of time to solve. To prove...
CK-12 Foundation
HL Triangle Congruence: Lesson
Use the right congruence statement. The video introduces the Hypotenuse-Leg Theorem to prove two right triangles are congruent. Part of a geometry playlist shows that it does not matter which leg to use when proving congruence.
CK-12 Foundation
The Trigonometric Ratios: Lesson
SOH, what is this thing called trigonometric ratios? A section of an extensive playlist on geometry identifies the adjacent and opposite sides in relationship of an angle. Using the identified sides, the video defines the sine, cosine,...
FuseSchool
Identifying the Sides of a Right Triangle
Find the right way to identify sides of right triangles. Scholars learn to correctly label the sides of a right triangle in the second video in a series of 16. The exercise is in preparation for determining trigonometric ratios.
Math Antics
The Pythagorean Theorem
Be sure the class gets this one right. Using a right triangle, the video introduces the Pythagorean Theorem. The presentation breaks down the theorem into its components while providing uses of the Pythagorean Theorem and its converse.
MinutePhysics
E=mc² is Incomplete
The most famous equation in the world isn't telling us the whole story! What if an object is actually moving? The narrator introduces momentum into the mix, resulting in the sad truth that traveling at the speed of light is almost, but...
National Science Foundation
Science of NFL Football: Pythagorean Theorem
Physics can make football players better. A creative video shows learners how to apply the Pythagorean Theorem to defensive situations. The first of a 10-part video series calculates the distance a defender needs to cover using right...
Curated OER
What is the Pythagorean Theorem?
Need to find the length of a side of a right triangle? Just use the Pythagorean Theorem! Follow along as the tutor defines the Theorem, explains how it works, then uses it to determine the missing length of a right triangle.
Curated OER
How Do You Find the Sine of an Angle in a Right Triangle?
A trigonometric ratio is a ratio between two sides of a right triangle. In this problem, find sin(A) in the given right triangle. Use the ratio of the opposite side over the hypotenuse.
Curated OER
What are the Legs and Hypotenuse of a Right Triangle?
What are all the parts of a right triangle called? What makes it a right triangle? Legs? Triangles have legs? Hypotenuse? Pythagorean Theorem? The instructor diagrams and identifies all the parts of a right triangle for you.
Curated OER
How Do You Find the Lateral and Surface Areas of a Cone if You Don't Know the Slant Height?
Did you know you can use the Pythagorean theorem to find the slant height of a cone? You can! Just watch this tutorial and see how you can find the lateral and surface area of a given cone using slant height and the Pythagorean theorem.
Curated OER
How Do You Find a Missing Side of a Right Triangle Using Cosine?
Trigonometry? What's trigonometry. Well, something to do with triangles, right? Right! Right triangles! In this problem, find the missing length of one of the sides. So set this up as a ratio: cosine(A) = adjacent side length divided by...
Curated OER
Hypotenuse
Entertain your students with this fun video where students explain how to solve for the hypotenuse. They are clearly enjoying themselves while they explain how to use the Pythagorean theorem.
Virtual Nerd
How Was the Distance Formula Derived?
Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...
Khan Academy
MTEL Math Practice Test: 36-40
Sal goes into detail when solving these problems on the practice MTEL math test, especially the complicated details of question 36. Viewers will rest assured of the ease with which Sal addresses these increasingly tricky problems.