{{{#!highlight haskell
#include<stdio.h>
#include<math.h>
int main(){

int a,b,c;
float s,l,h;

scanf("%d %d %d",&a,&b,&c);

s=(float)a*b*sinf((float)c/360*2*M_PI)/2;
l=(float)a+b+sqrt(a*a+b*b-2*a*b*cosf((float)c/360*2*M_PI));
h=(float)2*s/a;

printf("%f\n%f\n%f\n",s,l,h);

return(0);
}
}}}