Inscribed circle of a Triangle calculator

Side a:    
Side b:    
Side c:    
         
Inscribed Circle Radius :    
Inscribed Circle Area :    
Inscribed Circle Perimeter :    

every triangle has a unique inscribed circle (incircle) that is interior to the triangle and tangent to all three sides.

1. Radius (r) = √s(s-a)(s-b)(s-c) / s
2. s = (a + b + c) / 2

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