C program to calculate area of equilateral triangle.
Solution:
Formula:
In this program, first calculate square root of 3 using function sqrt. This function is included in header file <math.h>.
Output:
Solution:
Formula:
In this program, first calculate square root of 3 using function sqrt. This function is included in header file <math.h>.
#include<stdio.h>
#include<math.h>
int main()
{
int side;
float sq,area;
sq=sqrt(3)/4.0;
printf("Enter Side of Equilateral Triangle : ");
scanf("%d", &side);
area=sq*side*side;
printf("\nArea of Equilateral Triangle = %.3f",area);
return 0;
}
Output:
