C program to calculate area of equilateral triangle

C program to calculate area of equilateral triangle

Output:

Enter the side of the equilateral triangle: 3
Area of equilateral triangle is 3.897114

Implementation:

#include <stdio.h> #include <stdlib.h> #include <math.h> int main(void) { float area,side; float val; printf("Enter the side of the equilateral triangle:\n"); scanf("%f",&side); /* calculating the area of the equilateral triangle sqrt(3) * side * side area= --------------------- 4 */ val = sqrt(3); area = (val*side*side)/4; printf("Area of equilateral triangle is %f\n",area); return 0; }