Radius of the incircle of a right triangle

Description

Right triangle or right-angled triangle is a triangle in which one angle is a right angle (that is, a 90-degree angle). The incircle or inscribed circle of a triangle is the largest circle contained in the triangle; it touches (is tangent to) the three sides. The center of the incircle is called the triangle’s incenter. The radius of the incircle of a right triangle can be expressed in terms of legs and the hypotenuse of the right triangle.

Related formulas

Variables

rThe inradius of the right triangle (m)
aThe side of the triangle opposite the acute angle Α (m)
bThe side of the triangle opposite the acute angle B (m)
cThe hypotenuse of the right triangle (m)