Khan Academy
Review of special right triangles, including properties and problem-solving techniques.
Solving for a side in right triangles with trigonometry
Learn how to use trig functions to find an unknown side length in a right triangle.
Special right triangles (practice) | Khan Academy
Use the Pythagorean theorem to discover patterns in 30°-60°-90° and 45°-45°-90° triangles. Skip to main content If you're seeing this message, it means we're having trouble loading external …
Special right triangles proof (part 1) - Khan Academy
Special right triangles intro (part 2) Special right triangles. 30-60-90 triangle example problem ...
Special right triangles (жаттығу) | Хан академиясы
Lesson 3: Special right triangles. Special right triangles intro (part 1) Special right triangles intro (part 2) ...
Special right triangles intro (part 1) (video) | Khan Academy
A 45-45-90 triangle is a special type of right triangle, where the ratio of the lengths of the sides of a 45-45-90 triangle is always 1:1:√2, meaning that if one leg is x units long, then the other leg is also x units long, and the hypotenuse is x√2 units long. Created by Sal Khan.
Right triangles & trigonometry | Math | خان اکیڈیمی
Can you find the length of a missing side of a right triangle? You most likely can: if you are given two side lengths you can use the Pythagorean Theorem to find the third one. But, what if you are only given one side? Impossible? Cue sine, cosine, and tangent, which will help you solve for any side or any angle of a right triangle.
Trigonometry | Geometry (all content) | Math | Khan Academy
Not only are right triangles cool in their own right (pun intended), they are the basis of very important ideas in analytic geometry (the distance between two points in space) and trigonometry. Special right triangles
Special right triangles intro (part 2) (video) | Khan Academy
A 30-60-90 triangle is a special right triangle with angles of 30, 60, and 90 degrees. It has properties similar to the 45-45-90 triangle. The side opposite the 30-degree angle is half the length of the hypotenuse, and the side opposite the 60-degree angle is the length of the short leg times the square root of three.
Right triangles & trigonometry | Integrated math 2 | Khan Academy
Triangles are not always right (although they are never wrong), but when they are it opens up an exciting world of possibilities. Not only are right triangles cool in their own right (pun intended), they are the basis of very important ideas in analytic geometry (the distance between two points in space) and trigonometry.