
Pythagorean theorem | Geometry (all content) - Khan Academy
The Pythagorean theorem describes a special relationship between the sides of a right triangle. Even the ancients knew of this relationship. In this topic, we’ll figure out how to use the Pythagorean …
Triangle side lengths | Basic geometry and measurement | Khan Academy
The Pythagorean theorem describes a special relationship between the sides of a right triangle. Even the ancients knew of this relationship. In this topic, we’ll figure out how to use the Pythagorean …
Intro to the Pythagorean theorem (video) | Khan Academy
The Pythagorean theorem is a cornerstone of math that helps us find the missing side length of a right triangle. In a right triangle with sides A, B, and hypotenuse C, the theorem states that A² + B² = C². …
Intro to the Pythagorean theorem 2 (video) | Khan Academy
The Pythagorean theorem tells us that if and only if this is a right triangle, then a squared plus b squared is going to be equal to c squared. And we can use this information.
Intro to the Pythagorean theorem 2 (video) | Khan Academy
The Pythagorean theorem tells us that if and only if this is a right triangle, then a squared plus b squared is going to be equal to c squared. And we can use this information.
Special right triangles (practice) | Khan Academy
Use the Pythagorean theorem to discover patterns in 30°-60°-90° and 45°-45°-90° triangles.
Geometry | 8th grade math | Khan Academy
In this topic, we'll learn about special angles, such as angles between intersecting lines and triangle angles. Next, we'll learn about the Pythagorean theorem. Finally, we'll find volume of curved 3D …
Getting ready for right triangles and trigonometry - Khan Academy
The Pythagorean theorem is a 2 + b 2 = c 2 , where a and b are lengths of the legs of a right triangle and c is the length of the hypotenuse. The theorem means that if we know the lengths of any two sides of …
Pythagorean theorem example (video) | Khan Academy
The Pythagorean theorem states that in a right triangle, the sum of the squares of the two shorter sides equals the square of the longest side (the hypotenuse). We can apply the theorem to find the missing …
Pythagorean theorem and irrational numbers | Khan Academy
Use area of squares to visualize Pythagorean theorem Get 3 of 4 questions to level up!