Incircle Radius from Triangle Area

Incircle Radius from Triangle Area

For a triangle with area $$\delta$$ and semiperimeter $$s$$:

$$r=\frac{\Delta}{s}$$

Terminology

- $$r$$ → Inradius.

- $$s$$ → Semiperimeter.

- $$\delta$$ → Area of the triangle.

Usage

- Used to calculate the radius of the incircle directly from the triangle's area and semiperimeter.