Suppose a, b, and c denote the lengths of the sides of a triangle. Then the area of the triangle can be calculated using the formula:
where
Write a program that asks the user to input the length of sides of the triangle and print the area.
#include <stdio.h>
#include <math.h>
int main()
{
float a, b, c, s, area;
printf("Enter the length of side 1 :");
scanf("%f", &a);
printf("Enter the length of side 2 :");
scanf("%f", &b);
printf("Enter the length of side 3 :");
scanf("%f", &c);
s = (a + b + c) / 2;
area = sqrt(s*(s - a)*(s - b)*(s - c));
printf("\nThe area of the triangle is %0.2f", area);
return 0;
}
Enter the length of side 1 :10
Enter the length of side 2 :11
Enter the length of side 3 :13
The area of the triangle is 53.44