Python program to calculate area of a circle

April 1, 2019 Karan Mandal

Basic programs
All Python basic programs - Home Print hello world Print to console Input output integer Input output string Addition of numbers Swap two numbers - using temp Swap two numbers - without temp Calculate area of circle Calculate simple interest Calculate compound interest Find ASCII value of a character Calculate year week and days from given total days
If else programs
Check if character is alphabet or not Check whether a character is alphabet, digit or special character Find largest number using if statement Find largest number using if else statement Find largest number using nested if else statement Check whether a year is leap year or not Check whether number is even or odd Check whether a number is negative, positive or zero Check whether a character is upper or lowercase alphabet Check whether a character is vowel or consonant Print day name of week from number
Loop programs
Print all odd numbers from 1 to N Calculate sum of first N odd numbers Print all even numbers from 1 to N Calculate sum of first N even numbers Print first N natural numbers using for loop Calculate sum of first N natural numbers Print all prime numbers between 1 to N Print sum of prime numbers between 1 to N Find all factors of a number Print alphabets from a to z Check whether a given number is perfect number or not Check whether a given number is Armstrong number or not Check whether a number is palindrome or not Check whether a number is prime number or not Count number of digits in a given integer Find product of digits in a number Find sum of all digits in a number Calculate factorial of a number Find HCF of two user given numbers Find LCM of two user given numbers Calculate power of a number using for loop Find reverse of any number Print multiplication table of a any given number

Area of a circle

The area of a circle is the number of square units within the circle. To calculate the area of a circle the standard formula is: Area = Pi R Square

Area of circle = (A = πr²)

Logic

Here we have taken radius as input from the user, and to calculate the area of the circle we have to multiply the value of pi with the square of the radius.

Value of Pi = (3.14159)

Program

AreaOfCircle.py Copy

# Take radius from user
radius = float(input("Enter radius of the circle : "))

# Calculate area
area = 3.14 * (radius * radius)

# Print the result
print("\nArea of circle :", area)

Try It

Output

Enter radius of the circle : 25.125 Area of circle : 1982.1740625

Know more about Pi? – What is Pi?

Program tags program programming python programs

Python program to calculate area of a circle

Basic programs

If else programs

Loop programs

Area of a circle

Logic

Program

Output

Leave a Reply Cancel reply

Table of contents

Python program to calculate area of a circle

Basic programs

If else programs

Loop programs

Area of a circle

Logic

Program

Output

Leave a Reply Cancel reply

Table of contents

Stay tuned with us