C Program To Find Area Of An Equilateral Triangle - CodingBroz

In this post, we will learn how to find the area of an equilateral triangle using the C Programming language.

A triangle having all the sides equal and each angle equal to 60 degrees is called an equilateral triangle.

The formula to calculate the area of an equilateral triangle is: Area of Equilateral Triangle = (√3/4) * (side)2.

We will use this formula in our program to find the area of an equilateral triangle.

So, without further ado, let’s begin this tutorial.

Table of Contents Toggle

• C Program to Find Area of an Equilateral Triangle
• How Does This Program Work?
• Conclusion
  • Related

C Program to Find Area of an Equilateral Triangle

// C Program to Find Area of an Equilateral Triangle #include <stdio.h> #include <math.h> int main(){ float side, area; // Asking for input printf("Enter the side of an equilateral triangle: "); scanf("%f", &side); // Calculating area of equilateral triangle area = (sqrt(3) / 4) * (side * side); // Display result printf("Area of the triangle = %.2f", area); return 0; }

Output

Enter the side of an equilateral triangle: 9 Area of the triangle = 35.07

How Does This Program Work?

float side, area;

In this program, we have declared two floating data type variables named side and area.

// Asking for input printf("Enter the side of an equilateral triangle: "); scanf("%f", &side);

Then, the user is asked to enter the side of the equilateral triangle. This gets stored in the side named variable.

// Calculating area of equilateral triangle area = (sqrt(3) / 4) * (side * side);

We calculate the area of the equilateral triangle using the formula: area = (√3/4) * (side)2. Here, the sqrt() function is used to find the square root of a number. It is defined in the math.h header file.

// Display result printf("Area of the triangle = %.2f", area);

Finally, the area of the equilateral triangle is displayed on the screen using the printf() function. We have used %.2f format specifier to limit the area to 2 decimal places.

Conclusion

I hope after going through this post, you understand how to find the area of an equilateral triangle using the C Programming language.

If you have any doubt regarding the program, then contact us in  the comment section. We will be delighted to assist you.

Also Read:

• C Program to Find Area of Trapezium
• C Program To Calculate Area of Square
• C Program to Find Area of Parallelogram
• C Program To Calculate Area of Rectangle
• C Program to Find Area of Right Angled Triangle

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