Calculate the area of regular polygonΒΆ

Calculate the area of regular polygon.
Expected output:
Input number of sides: 4
Input the length of a side: 25
The area of the polygon is: 625.0000000000001
from math import tan, pi

n_sides  = int(input("Input number of sides: "))
s_length = float(input("Input the length of a side: "))

p_area = n_sides * (s_length ** 2) / (4 * tan(pi / n_sides))

print("The area of the polygon is: ", p_area)

Output:

Input number of sides: 4
Input the length of a side: 20
The area of the polygon is: 400.00000000000006