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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

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

Input-: side=14.0 Output-: Area of Equilateral Triangle is : 84.8705 Perimeter of Equilateral Triangle: 42

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

#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; }

Area of Equilateral Triangle is : 84.8705 Perimeter of Equilateral Triangle: 42

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