Tutorial Gateway

  • C
  • C#
  • Java
  • Python
  • SQL
  • MySQL
  • Js
  • BI Tools
    • Informatica
    • Talend
    • Tableau
    • Power BI
    • SSIS
    • SSRS
    • SSAS
    • MDX
    • R Tutorial
    • Alteryx
    • QlikView
  • More
    • C Programs
    • C++ Programs
    • Go Programs
    • Python Programs
    • Java Programs

C Program to find Area of an Equilateral Triangle

by suresh

How to write C Program to find Area of an Equilateral Triangle, Perimeter, Semi Perimeter, and Altitude of an Equilateral Triangle of with example?. Before we step into C Program to find Area of an Equilateral Triangle example, let see the definitions and formulas behind this.

C Area of an Equilateral Triangle

The Equilateral Triangle is a triangle with all sides are equal, and all of the angles are equal to 60 degrees. If we know the side of an Equilateral Triangle, we can calculate the area of an Equilateral Triangle using the below formula.

Area = (√3)/4 * s² (S = Any side of the Equilateral Triangle)

Perimeter is the distance around the edges. We can calculate the perimeter of an Equilateral Triangle using below formula:
Perimeter = 3s

We can calculate Semi Perimeter of an Equilateral Triangle using the formula: 3s/2, or we can say Perimeter/2.

We can calculate Altitude of an Equilateral Triangle using the formula: (√3)/2 * s

C Program to find Area of an Equilateral Triangle

This program allows the user to enter the length of any one side of an Equilateral Triangle. Using this value, we will calculate the Area, Perimeter, Semi Perimeter, Altitude of the Equilateral Triangle.

/* C Program to find Area of an Equilateral Triangle */

#include<stdio.h>
#include<math.h>

int main()
{
  float side;
  float Area, Perimeter, Semi, Altitude; 

  printf("\n Please Enter Length of any side\n");
  scanf("%f",&side);

  Area = (sqrt(3)/4)*(side*side);
  Perimeter = 3*side; 
  Semi = Perimeter/2;
  Altitude = (sqrt(3)/2)*side;

  printf("\n Area of Equilateral Triangle = %.2f\n",Area);
  printf("\n Perimeter of Equilateral Triangle = %.2f\n", Perimeter);
  printf("\n Semi Perimeter of Equilateral Triangle = %.2f\n", Semi);
  printf("\n Altitude of Equilateral Triangle = %.2f\n", Altitude);
  return 0;
}
C Program to find Area of an Equilateral Triangle

Within this C Program to find Area of an Equilateral Triangle, the Following statements will allow the user to enter the length of any side in the Equilateral Triangle.

  printf("\n Please Enter Length of any side\n");
  scanf("%f",&side);

Next, we are calculating the Area of an Equilateral Triangle using the Formula:

 Area = (sqrt(3)/4)*(side*side);

sqrt() is the math function in C Programming, used to calculate the square root. It will return an error if we miss using the <math.h> header file.

In the next line of this C program, We are calculating the Perimeter of an Equilateral Triangle using the formula

Perimeter = 3*side;

In the next line, We are calculating the semi perimeter of an Equilateral Triangle using the following formula. We can also find semi perimeter using the standard formula = (3* side) / 2.

 Semi = Perimeter/2

In the next line, We are calculating the Altitude of an Equilateral Triangle using the formula:

Altitude = (sqrt(3)/2)*side

The following printf statements will help us to print the Perimeter, Semi Perimeter, Altitude and Area of an Equilateral Triangle

  printf("\n Area of Equilateral Triangle = %.2f\n",Area);
  printf("\n Perimeter of Equilateral Triangle = %.2f\n", Perimeter);
  printf("\n Semi Perimeter of Equilateral Triangle = %.2f\n", Semi);
  printf("\n Altitude of Equilateral Triangle = %.2f\n", Altitude);

Placed Under: C Programs

  • C Hello World
  • C Add Two numbers
  • C Armstrong Number Program
  • C Convert Celsius to Fahrenheit
  • C Convert Decimal to Binary
  • C Convert Decimal to Octal
  • C Convert CM to Meter and KM
  • C Convert KM to M, CM & MM
  • C Convert Fahrenheit to Celsius
  • C Compound Interest Program
  • C Count Digits in a Number
  • C Count Notes in an Amount
  • C Cube of a Number
  • C Electricity Bill Program
  • C Factors of a Number Program
  • C Factorial of a Number Program
  • C GCD of Two Numbers
  • C Generic Root of a Number
  • C Gross Salary of an Employee
  • C Largest of Two Numbers
  • C Largest of Three numbers
  • C Last Digit Of a Number
  • C LCM of Two Numbers
  • C Leap Year program
  • C Multiplication Table program
  • C Natural Numbers from 1 to N
  • C Natural Numbers in reverse
  • C NCR Factorial of a Number
  • C Number is Divisible by 5 and 11
  • C Palindrome Program
  • C Palindrome String program
  • C Perfect Number Program
  • C Profit or Loss Program
  • C Print 1 to 100
  • C Print Prime Numbers 1 to 100
  • C Prime Number program
  • C Prime Factors of a Number
  • C Prime, Armstrong or Perfect
  • C Positive or Negative program
  • C Print Odd Numbers 1 to N
  • C Print Even Numbers 1 to N
  • C Print Integer, Char & Float
  • C Power of a Number program
  • C Product of Digits in a Number
  • C Roots of a Quadratic Equation
  • C Reverse a Number
  • C Simple Calculator Program
  • C Simple Interest
  • C Square of a Number
  • C Square Root of a Number
  • C Standard Deviation program
  • C Strong Number Program
  • C Student Grade program
  • C Sum of Odd Numbers program
  • C Sum of Even Nums program
  • C Sum of Even and Odd Nums
  • C Swap First & Last digit of Num
  • C Sum of First & Last digit Num
  • C Sum of Digits of a Number
  • C Sum of N Numbers Program
  • C Sum and Average of n Number
  • C Swap 2 Numbers
  • C Total, Avg & % of Five Subjects
  • C Quick Sort
  • C Selection Sort
  • C Insertion Sort
  • C Bubble Sort
  • C Fibonacci Series Program
  • C Nth Fibonacci number
  • C Sum of AP Series
  • C Sum of GP Series
  • C Sum of series 1³+2³+3³+….+n³
  • C Sum of series 1²+2²+3²+….+n²
  • C ASCII value of String chars
  • C Print Characters in a String
  • C Compare Two Strings
  • C Concatenate Two Strings
  • C Copy String
  • C String length program
  • C Convert String to Lowercase
  • C First Occurrence of string char
  • C First Occur of String Word
  • C Count Occur of string Char
  • C Count Alphabets, Digits & Special Chars
  • C Count Vowels & Consonants
  • C string remove all Occ of char
  • C remove 1st Occ of char in string
  • C remove last Occ char in string
  • C replace All Occ of char in string
  • C Replace last Occ of String Char
  • C Replace 1st occ char in string
  • C Reverse words Order in string
  • C Reverse a String
  • C Toggle Case of all char in string
  • C Array Arithmetic Operations
  • C Matrix Arithmetic Operations
  • C Count Frequency of array item
  • C Count Duplicate Array items
  • C Count +ve & -Ve Array items
  • C Count Even & Odd Array items
  • C Copy an Array to another
  • C Delete Duplicate Array items
  • C Delete an Element in an Array
  • C insert an Element in an Array
  • C 2nd largest Number in an Array
  • C Find Largest Array Number
  • C Find Smallest Array Number
  • C Largest & Smallest Array item
  • C Merge Two Arrays
  • C Print Unique Array Elements
  • C Print Arrayy Elements
  • C Print Negative Array Numbers
  • C Print Positive Array Numbers
  • C Put +ve & -Ve in 2 Arrays
  • C Put Even & Odd in 2 Arrays
  • C Program to Reverse an Array
  • C Search an Element in an Array
  • C Sum of array even, odd nums
  • C Sort Array in Ascending Order
  • C Sort Array in Descending
  • C Swap 2 Arrays without Temp
  • C Sum of all Array Elements
  • C Sum of each Matrix column
  • C sum of each row in a Matrix
  • C Sum of Matrix row & column
  • C Add Two Matrices
  • C Sparse Matrix
  • C Symmetric Matrix
  • C Identity Matrix
  • C Interchange Matrix Diagonals
  • C Check two Matrices Equal
  • C Lower Triangle of a Matrix
  • C Upper Triangle of a Matrix
  • C Sum of Lower Triangle Matrix
  • C Sum of Upper Triangle Matrix
  • C Subtract Two Matrices
  • C Transpose of a Matrix program
  • C Cuboid Volume & Surface Area
  • C Cone Volume & Surface Area
  • C Cube Volume & Surface Area
  • C Volume & Surface of Cylinder
  • C Volume & Surface of Sphere

Copyright © 2021 · All Rights Reserved by Suresh

About Us | Contact Us | Privacy Policy