Python Program Input Radius of Circle and Compute the Area

Python Program Input Radius of Circle and Compute the Area

Python program to input radius of a circle and calculate its area; Through this tutorial, you will learn how to calculate area of circle using inputted radius in python.

The area of a circle is the number of square units inside that circle. If each square in the circle to the left has an area of 1 cm2, you could count the total number of squares to get the area of this circle.

The area of a circle can be found by multiplying pi ( π = 3.14) by the square of the radius. e.g. If a circle has a radius of 5, its area is 3.14*5*5=78.53.

Python Program Input Radius of Circle and Calculate the it’s Area

  • Algorithm to find the Area of a circle in python
  • Python program which accept the radius of a circle from the user and computes the area

Algorithm to find the Area of a circle in python

Use the following algorithm and write a program to input radius of a circle and calculate its area in python:

  • Import math module in python program.
  • Take input number from user.
  • Calculate area of the circle with a given radius by using formula pi * r**2.
  • Print result.

Python program which accept the radius of a circle from the user and compute the area

# import math module
from math import pi

# take input from user
r = float(input ("Input the radius of the circle : "))

# compute the area from radius of a circle given by user
calculateArea = str(pi * r**2);

#print result
print ("The area of the circle with radius " + str(r) + " is: " + calculateArea)

After executing the program, the output will be:

Input the radius of the circle :  2
The area of the circle with radius 2.0 is: 12.566370614359172

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AuthorAdmin

My name is Devendra Dode. I am a full-stack developer, entrepreneur, and owner of Tutsmake.com. I like writing tutorials and tips that can help other developers. I share tutorials of PHP, Python, Javascript, JQuery, Laravel, Livewire, Codeigniter, Node JS, Express JS, Vue JS, Angular JS, React Js, MySQL, MongoDB, REST APIs, Windows, Xampp, Linux, Ubuntu, Amazon AWS, Composer, SEO, WordPress, SSL and Bootstrap from a starting stage. As well as demo example.

One reply to Python Program Input Radius of Circle and Compute the Area

  1. Thanks for helping

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