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2a)
//print "enter the radius of the circle:"
//scan the number inputted and store it as <circle_radius>
//run the equation to find the circumference = <2 * 3.1416 * circle_radius>
//print the circumference that was equated, that is the answer
2b)
#include<stdio.h>
int main()
{
int circle_radius;
float PI_VALUE = 3.1416, circle_area, circle_circumference;
//ask for the radius
printf("\nInput the radius of the circle:");
//store the input
scanf_s("%d", &circle_radius);
//calculate circumference
circle_circumference = 2 * PI_VALUE * circle_radius;
//display the circumference
printf("\nCircumference is equal to: %f", circle_circumference);
return (0);
}
2c)
#include<stdio.h>
int main()
{
int circle_radius;
float PI_VALUE = 3.1416, circle_area, circle_circumference;
//ask for the radius
printf("\nInput the radius of the circle:");
//store the input
scanf_s("%d", &circle_radius);
//calculate circumference
circle_circumference = 2 * PI_VALUE * circle_radius;
//display the circumference
printf("\nCircumference is equal to: %f", circle_circumference);
return (0);
}
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