[CO2] Write a program to create a class Circle. Perform the following operations on it:
a. Define the attribute radius.
b. Define the constructor with one argument containing radius.
c. Define the method named get radius which returns the radius of the circle.
d. Define the method named calc area@ which returns the area of the circle.
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Answer:
Sure! Here's a simple Python program to create the `Circle` class and perform the specified operations:
```python
import math
class Circle:
def __init__(self, radius):
self.radius = radius
def get_radius(self):
return self.radius
def calc_area(self):
area = math.pi * self.radius**2
return area
# Example usage:
radius_value = 5
circle_instance = Circle(radius_value)
print(f"Circle Radius: {circle_instance.get_radius()}")
print(f"Circle Area: {circle_instance.calc_area()}")
```
This program defines the `Circle` class with a constructor that initializes the radius attribute, methods to get the radius and calculate the area using the formula πr^2, and provides an example of how to use the class.
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