Polygon area

Question

formula of polygon area if all side of polygon is equal:
(n * s ^ 2) / 4 * tan(π / n)
where n is number of side of polygon
and s is side's length
can someone correct my code please
import math
sides = int(input("number of side >> "))
sides_l = int(input("side length >> "))
a = math.pi / sides
p_area = sides * sides_l ** 2 / 4 * math.tan(a)
print(f"number of side: {sides} side length: {sides_l} area of polygon: {round(p_area, 3)}")
first input: 6
second input: 5
#expect output
64.952
#my output
21.637
why my answer is not match with expect answer ?

Answer 1

キャサリン ,
use the formula this way:
...
p_area = sides * (sides_l ** 2) / (4 * math.tan(a))
...

Answer 2

Lothar
sorry. i didn't notice that there is a parenthesis cover all last part of formula
thank you! you save my day!