A right triangle is a type of triangle where one of the three angles measures exactly 90 degrees. This angle is often referred to as the “right angle.” Because right triangles are such a fundamental ...

Triangles are some of the most basic and well-known shapes in geometry, featuring three sides and three angles. Becoming familiar with the methods to calculate various properties of a triangle, such ...

To calculate the area of a rectangle you multiply the length by the width. A right-angled triangle is like half a rectangle. So to calculate the area of a triangle, you can work out the area of the ...