Friday, September 2, 2016

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C Program To Calculate Diameter, Circumference and Area of a Circle

Question: Write a program that reads in the radius of a circle and prints the circle’s diameter, circumference and area. Use the constant value 3.14159 for π. Perform each of these calculations inside the printf statement(s) and use the conversion specifier %f.
/* 
 * Author: AGHATISE OSAZUWA
 * Website: www.cscprogrammingtutorials.com 
 *
 * Program to calculate the diameter, circumference and area of a circle.
 */

#include <stdio.h>
int main ( ){
    int rad;
    puts("Enter radius of circle: ");
    scanf("%d", &rad);
    printf("Diameter is %d\n", 2 * rad);
    printf("Circumference is %f\n", 2 * 3.14159 * rad);
    printf("Area is %f\n", 3.14159 * rad * rad);
    return 0;
}
Diameter, circumference, area of a  circle c program calculator
Program Output
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