Question

write a C program to find area and circumference of circle.


Area=22/7*r*r
Circumferance=2*22/7*r




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Answer 1

Answer:

Here we are writing a simple C program that calculates the area and circumference of circle based on the radius value provided by user.

Formula:

Area = 3.14 * radius * radius

Circumference = 2 * 3.14 * radius

Program to calculate Area and Circumference based on user input

To calculate area and circumference we must know the radius of circle. The program will prompt user to enter the radius and based on the input it would calculate the values. To make it simpler we have taken standard PI value as 3.14 (constant) in the program. Other details are mentioned as comments in the below example program