Program to calculate the area and perimeter of an equilateral triangle

A triangle is a closed figure with three sides. All sides of an equilateral triangle are equal. The area and perimeter of an equilateral triangle can be calculated using the following formula:

Area of ​​an equilateral triangle = (√3)/4*a²

of an equilateral triangle Perimeter = 3 * a

Code Logic

To calculate the area of ​​an equilateral triangle, the program uses the square root and power functions. The math library has these two functions that can be used to perform calculations in programs.

The following code shows the program to calculate the area and perimeter of an equilateral triangle,

Example

Live demonstration

#include <stdio.h>
#include <math.h>
int main(){
   int side = 5, perimeter;
   float area;
   perimeter = (3 * side);
   area = (sqrt(3)/4)*(side*side);
   printf("perimeter is %d</p><p>", perimeter);
   printf("area is %f", area);
   return 0;
}

Output

perimeter is 15
area is 10.825317

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