App description

Exolateral triangle calculation

\(S=√[p(p-a)(p-b)(p-c)]\)

\(r= \frac {S}{p}=√[ \frac {(p-a)(p-b)(p-c)}{p} ]\)

p - three sides and half

S - triangular area

R——the radius of the inscribed circle of the triangle

Usage example

Input data:

A-triangle three sides long 1:3

B—triangle three sides long 2:4

C—triangle three sides long 3:5

P—three sides and half: 12

R—triangle circumcircle radius: 15

S-triangle area: 20

Click "Calculate" to output data

Triangle area: 77.76

Triangle inscribed circle radius: 42

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