Write a C program to find the area of triangle given three sides.
#include <stdio.h>
#include <math.h>
int main () {
float p, a, b, c, area;
printf("Enter ur inputs for 3 sides:\n");
/* get input for three sides of a triangle */
scanf("%f%f%f", &a, &b, &c);
/* calculate semi perimeter */
p = (a + b + c) / 2;
/* calculate area of triangle */
area = sqrt(p * (p - a) * (p - b) * (p - c));
/* print the result */
printf("Area of triangle: %f\n", area);
return 0;
}
Output:
/* lm - links math library(sqrt - API present in math lib) during compilation */
jp@jp-VirtualBox:~/$ gcc ex01.c -lm
jp@jp-VirtualBox:~/$ ./a.out
Enter ur inputs for 3 sides:
10 15 15
Area of triangle: 70.710678
jp@jp-VirtualBox:~/$ gcc ex01.c -lm
jp@jp-VirtualBox:~/$ ./a.out
Enter ur inputs for 3 sides:
10 15 15
Area of triangle: 70.710678
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