# Incircle of a triangle Calculator

## Calculates the radius and area of the incircle of a triangle given the three sides.

side a
side b
side c

incircle area Sc
triangle area St
area ratio Sc/St
 $\normal Incircle\ of\ a\ triangle\\(1)\ incircle\ radius:\hspace{2} r={\large\frac{\sqrt{s(s-a)(s-b)(s-c)}}{s}}\\\hspace{230} s={\large\frac{a+b+c}{2}}\\(2)\ incircle\ area:\ Sc=\pi r^2\\\vspace{5}(3)\ triangle\ area:\ St=\sqrt{s(s-a)(s-b)(s-c)}\\$

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