Define a class named Circle which can be constructed by a radius. The Circle class has a method which can compute the area.


Topic: Define a class named Circle which can be constructed by a radius. The Circle class has a method which can compute the area.

Solution

class Circle(object):
    def __init__(self, r):
        self.radius = r
    def area(self):
        return self.radius**2*3.14



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