import math
s=math.sqrt

pi=2*(2/s(2))*(2/s(2+s(2)))*(2/s(2+s(2+s(2))))*(2/s(2+s(2+s(2+s(2)))))*(2/s(2+s(2+s(2+s(2+s(2))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2)))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2+s(2))))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2+s(2+s(2)))))))))
print("Approximation of pi:", round(pi,3))

r=eval(input("Enter the radius:\n"))
print("Area:",round(pi*r**2,3))
dbad9407826c32b389923fbc57ae6343817bd157
<mask token>

<mask token>
print('Approximation of pi:', round(pi, 3))
<mask token>
print('Area:', round(pi * r ** 2, 3))

<mask token>
s = math.sqrt
pi = 2 * (2 / s(2)) * (2 / s(2 + s(2))) * (2 / s(2 + s(2 + s(2)))) * (2 / s
    (2 + s(2 + s(2 + s(2))))) * (2 / s(2 + s(2 + s(2 + s(2 + s(2)))))) * (2 /
    s(2 + s(2 + s(2 + s(2 + s(2 + s(2))))))) * (2 / s(2 + s(2 + s(2 + s(2 +
    s(2 + s(2 + s(2)))))))) * (2 / s(2 + s(2 + s(2 + s(2 + s(2 + s(2 + s(2 +
    s(2)))))))))
print('Approximation of pi:', round(pi, 3))
r = eval(input('Enter the radius:\n'))
print('Area:', round(pi * r ** 2, 3))

import math
s = math.sqrt
pi = 2 * (2 / s(2)) * (2 / s(2 + s(2))) * (2 / s(2 + s(2 + s(2)))) * (2 / s
    (2 + s(2 + s(2 + s(2))))) * (2 / s(2 + s(2 + s(2 + s(2 + s(2)))))) * (2 /
    s(2 + s(2 + s(2 + s(2 + s(2 + s(2))))))) * (2 / s(2 + s(2 + s(2 + s(2 +
    s(2 + s(2 + s(2)))))))) * (2 / s(2 + s(2 + s(2 + s(2 + s(2 + s(2 + s(2 +
    s(2)))))))))
print('Approximation of pi:', round(pi, 3))
r = eval(input('Enter the radius:\n'))
print('Area:', round(pi * r ** 2, 3))

import math
s=math.sqrt

pi=2*(2/s(2))*(2/s(2+s(2)))*(2/s(2+s(2+s(2))))*(2/s(2+s(2+s(2+s(2)))))*(2/s(2+s(2+s(2+s(2+s(2))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2)))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2+s(2))))))))*(2/s(2+s(2+s(2+s(2+s(2+s(2+s(2+s(2)))))))))
print("Approximation of pi:", round(pi,3))

r=eval(input("Enter the radius:\n"))
print("Area:",round(pi*r**2,3))