import math
deg = math.degrees
rad = math.radians
sin = math.sin
sqrt = math.sqrt
c = float(input('side length ? '))
dia = sqrt(c**2+c**2)
r = 0.57735027*dia
H = sin(rad(54.73561026037919))*dia
A = (3*sqrt(3)/2)*(r**2)
print('area = ',round(A,3),'m2 ','hex side = ',round(r,2))
print('apex (max height)',round(H,2),'entrance height = ',round(H/2,2))