Category:Area of Triangle in Terms of Inradius

This category contains pages concerning Area of Triangle in Terms of Inradius:

Let $\triangle ABC$ be a triangle whose sides are $a$, $b$ and $c$ opposite vertices $A$, $B$ and $C$ respectively.

Then the area $\AA$ of $\triangle ABC$ is given by:

$\AA = r s$

where:

$r$ is the inradius of $\triangle ABC$

$s = \dfrac {a + b + c} 2$ is the semiperimeter of $\triangle ABC$.