#include<stdio.h> #include<math.h> main(){ float a,b,c,s,perimeter,area; printf(“Enter 3 sides of the triangle:”); scanf("%f%f%f",&a,&b,&c); if((a+b>c)&&(a+c>b)&&(b+c>a)){ perimeter=a+b+c; s=(a+b+c)/2.0; area=sqrt(s*(s-a)(s-b)(s-c)); printf(“area=%.2f;perimeter=%.2f”,area,perimeter); } else printf(“These sides do not correspond to avalid triangle”); }
