A right triangle is a type of triangle that has one angle measuring exactly 90 degrees. The side opposite this 90-degree angle is called the hypotenuse, which is the longest side of the right triangle ...

Triangles are one of the most basic and well-known shapes in geometry, with a wide range of applications in fields such as engineering, architecture, and mathematics. Calculating the length of a ...

Trigonometry can be used to find the length of a side in a triangle. Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing side in a right-angled ...

Common geometric shapes include triangles, quadrilaterals and circles, and many everyday objects have faces that are made up of these shapes. The perimeter of a shape refers to the length of its ...