import math
import random

def montePi(numDarts):

    inCircle = 0 # counter variable, points inside circle
    for i in range(numDarts): # we throw numDarts darts
        x = random.random() # each dart we determine the random x corrdinate
        y = random.random() # each dart we determine the random y coordinate
        distance = math.sqrt(x**2 + y**2)

        if distance <= 1:
            inCircle = inCircle + 1

    pi = inCircle/numDarts * 4
    return pi