Question

Using the algorithm information below, program a calculator for the area and circumference of a circle. Answer in C LANGUAGE !!

Algorithm for Area and Circumference of a Circle:

Inputs:
- radius of the circle

Outputs:
- the area of the circle
- the circumference of the circle

Relevant Constants and Formulas:
- area of a circle = PI x Radius x Radius
- circumference of a circle = 2 x PI X Radius

Main Algorithm (numbered steps)

1. Input the circle radius

2. Calculate the area
2.1 (Refinement) Assign the results of PI * radius * radius to a variable representing area

3. Calculate the circumference
3.1 (Refinement) Assign the results of 2 * PI * radius to a variable representing circumference

4. Display the results to the user

Answer 1

code:

#include <stdio.h>

int main(void) {

int radius;

const float PI = 3.14;

//taking input from user

printf("\nEnter the circle radius : ");

scanf("%d",&radius);

//finding area and circumference

float area = PI * radius * radius;

float circumference = 2 * PI * radius;

//display the result

printf("\nArea of circle : %.2f",area);

printf("\ncircumference of a circle : %.2f",circumference);

return 0;

}