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Program to calculate area and perimeter of equilateral triangle in C++
What is Equilateral Triangle?
As the name suggests, equilateral triangle is the one that have equal sides and also it have equal interior angles of 60° each. It is also known as regular triangle because it’s a regularpolygon
Properties of equilateral triangle are −
- 3 sides of equal length
- Interior angles of same degree which is 60
Given below is the figure of equilateral triangle
Problem
Given with the side of equilateral triangle the task is to find the area and perimeter of a triangle where area is the space occupied by the shape and perimeter is the space occupied by its boundaries.
To calculate area and perimeter of a equilateral triangle there is a formula
Example
Input-: side=14.0 Output-: Area of Equilateral Triangle is : 84.8705 Perimeter of Equilateral Triangle: 42
ALGORITHM
Start Step 1 -> Declare function to calculate area of equilateral trainagle Float area(float side) Return sqrt(3) / 4 * side * side Step 2 -> Declare function to calculate perimeter of equilateral trainagle Float perimeter(float side) Return 3 * side Step 3 -> In main() float side = 14.0 call area(side) call perimeter(side) Stop
CODE
#include <bits/stdc++.h>
using namespace std;
//function to calculate area of equilateral triangle
float area(float side){
return sqrt(3) / 4 * side * side;
}
//function to calculate perimeter of equilateral triangle
float perimeter(float side){
return 3 * side;
}
int main(){
float side = 14.0;
cout << "Area of Equilateral Triangle is : "<<area(side);
cout << "\nPerimeter of Equilateral Triangle: "<<perimeter(side);
return 0;
}Output
Area of Equilateral Triangle is : 84.8705 Perimeter of Equilateral Triangle: 42
Updated on: 20-Sep-2019
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