Question

Please do this in C language. Thank you

1. Write the following functions that compute the volume and surface of a sphere with radius r; a cylinder with circular base with radius r and height h; and a cone with circular base with radius r and height h. Place these functions in appropriate class. Define n (PI) as a constant variable equals to 3.14 then use it in the functions. float sphereVolume(float r) float sphereSurface(float r) float cylinderVolume(float r, float h) float cylinder Surface(float r, float h) float coneVolume(float r, float h) float coneSurface(float r, float h) Now, prompt the user for the values of r and h, call the 6 functions, and print the result.

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define PI 3.14285714286

// Function to calculate and return volume of a sphere
float sphereVolume(float r)
{
// Calculates and returns volume of a sphere
return ((4.0f/3.0f) * PI *(r * r *r ));
}// End of function

// Function to calculate and return surface of a sphere
float sphereSurface(float r)
{
// Calculates and returns surface area of a sphere
return (4.0f * PI * r * r );
}// End of function

// Function to calculate and return volume of a cylinder
float cylinderVolume(float r, float h)
{
// Calculates and returns volume of a cylinder
return (PI * r * r * h);
}// End of function

// Function to calculate and return surface of a cylinder
float cylinderSurface(float r, float h)
{
// Calculates and returns surface area of a cylinder
return (2.0f * PI * r * (r + h));
}// End of function

// Function to calculate and return volume of a cone
float coneVolume(float r, float h)
{
// Calculates and returns volume of a cone
return (1.0/3.0) * PI * r * r * h;
}// End of function

// Function to calculate and return surface of a cone
float coneSurface(float r, float h)
{
// Calculates and returns surface area of a cone
return PI * r * (r + sqrt(r * r + h * h));
}// End of function

// main function definition
int main()
{
// To store radius and height entered by the user
float r, h;
// To store user choice
int choice;

// Loops till user choice is not 7
do
{
// Displays menu
printf("\n\n **************** MENU **************** ");
printf("\n\t 1 - Sphere Volume \n\t 2 - Sphere Surface \n\t 3 - Cylinder Volume \
\n\t 4 - Cylinder Surface \n\t 5 - Cone Volume \n\t 6 - Cone Surface \n\t 7 - Exit \
\n\t\t What is your choice? ");
// Accepts user choice
scanf("%d", &choice);

// Checks user choice and calls appropriate function and displays result
switch(choice)
{
case 1:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n\n Sphere Volume: %.2f", sphereVolume(r));
break;
case 2:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n\n Sphere Surface area: %.2f", sphereSurface(r));
break;
case 3:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n Enter height: ");
scanf("%f", &h);
printf("\n\n Cylinder Volume: %.2f", cylinderVolume(r, h));
break;
case 4:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n Enter height: ");
scanf("%f", &h);
printf("\n\n Cylinder Surface area: %.2f", cylinderSurface(r, h));
break;
case 5:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n Enter height: ");
scanf("%f", &h);
printf("\n\n Cone Volume: %.2f", coneVolume(r, h));
break;
case 6:
printf("\n Enter radius: ");
scanf("%f", &r);
printf("\n Enter height: ");
scanf("%f", &h);
printf("\n\n Cone Surface area: %.2f", coneSurface(r, h));
break;
case 7:
printf("\n\n\t\t Thanks.");
exit(0);
default:
printf("\n\n\t\t Invalid Choice!!");
}// End of switch - case
}while(1);// End of do - while loop
}// End of main function

Sample Output:

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 1

Enter radius: 4

Sphere Volume: 268.19

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 2

Enter radius: 2

Sphere Surface area: 50.29

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 3

Enter radius: 4

Enter height: 6

Cylinder Volume: 301.71

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 4

Enter radius: 5

Enter height: 1

Cylinder Surface area: 188.57

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 6

Enter radius: 3

Enter height: 2

Cone Surface area: 62.28

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 9

Invalid Choice!!

**************** MENU ****************
1 - Sphere Volume
2 - Sphere Surface
3 - Cylinder Volume
4 - Cylinder Surface
5 - Cone Volume
6 - Cone Surface
7 - Exit
What is your choice? 7

Thanks.