Side length a=
Side length b=
Side length c=


Side length a=
Side length b=
Side length c=
Perimeter p=a+b+c =
area A =
Height h_a =
Height h_b =
Height h_c =
Angle alpha =
Angle beta =
Angle gamma =
median line sqrt(2*(b*b+c*c)-a*a)/2 =
median line sqrt(2*(c*c+a*a)-b*b)/2 =
median line sqrt(2*(a*a+b*b)-c*c)/2 =
Radius of incircle 2A/(a+b+c) =
Radius of out circle (abc)/((a+b+c)*2*r_i) =



Description at Wikipedia

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