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/* Program to calculate area of triangle and its circumference.*/

#include<stdio.h>
#include<conio.h>
#include<math.h>
int main()
{
float s,a,b,c,area,circumference;
clrscr();
printf("enter value of a:");
scanf("%f",&a);
printf("enter value of b:");
scanf("%f",&b);
printf("enter value of c:");
scanf("%f",&c);
s=(a*b*c)/2;
area=sqrt(s*(s-a)*(s-b)*(s-c));
circumference=a+b+c;
printf("value of area is %f",area);
printf("value of circumference is %f",circumference);
getch();
return 0;
}