right triangle

Also known as right-angled triangle

triangle in which one angle is a 90-degree angle

AI overview

A right triangle is a triangle that has one angle measuring exactly 90 degrees, which looks like a perfect corner or square angle. Right triangles matter because their special properties—like the Pythagorean theorem—make them useful for solving practical problems in construction, navigation, and engineering.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Image: Right triangle with labels.svg

Show 1 more fact

Commons category: Right triangles

Sources (1)

wikidata.org

via Wikidata · CC0

~17 min read

Article

A right triangle △ABC with its right angle at C, hypotenuse c, and legs a and b, A right triangle or right-angled triangle, sometimes called an orthogonal triangle or rectangular triangle, is a triangle in which two sides are perpendicular, forming a right angle ( 1⁄4 turn or 90 degrees).

The side opposite to the right angle is called the hypotenuse (side