In this Python program, we will learn how to find the area of an equilateral triangle.

What is the Equilateral Triangle?

In geometry, an equilateral triangle is a triangle in which all three sides are equal. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°.

Formula

Area of the Equilateral Triangle = (√3/ 4 ) x (side of equilateral triangle)²

Perimeter of the Equilateral Triangle = 3 x side of equilateral triangle

Semiperimeter of Equilateral Triangle = 3 x side of equilateral triangle / 2

Altitude of the Equilateral Triangle = (1/2) * √3 * side of equilateral triangle

Here is the source code of the program to calculate the area of the equilateral triangle.

Python Program to Find the Area of an Equilateral Triangle

# Python Program to Find the Area of an Equilateral Triangle
# Import Module
import math
# Take the Input From the User
side = float(input("Enter Length of any side of an Equilateral Triangle: "))
# calculate the area
Area = (math.sqrt(3)/ 4)*(side * side)
# calculate the Perimeter
Perimeter = 3 * side
# calculate the semi-perimeter
Semi = Perimeter / 2
# calculate the Altitude
Altitude = (math.sqrt(3)/2)* side
# Print the Output
print("\nArea of Equilateral Triangle = %.2f" %Area)
print("Perimeter of Equilateral Triangle = %.2f" %Perimeter)
print("Semi Perimeter of Equilateral Triangle = %.2f" %Semi)
print("Altitude of Equilateral Triangle = %.2f" %Altitude)

Output

Enter Length of any side of an Equilateral Triangle: 5

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