C++ The volume of a cone is given by the formula: V = r2 h / 3 For the value of

Question

C++

The volume of a cone is given by the formula:
V = r2 h / 3

For the value of use:
const double PI = 3.14159265358979323846;

Declare a structure named: Cone
containing:

Create the following functions:

main

Contains three variables:

A pointer named ptr which points to a Cone structure

A double named height

A double named radius

Uses new to obtain space for the data structure

Calls the the input, setUp, and output functions

Deletes the space that was obtained using new

input:

Takes the height of the cone and radius of the base as reference parameters

Reads the height and radius from the user

Has a return type of void

setUp:

Takes three parameters by value: height, radius, and a pointer to the Cone

Puts the data into the data structure

Has a return type of void

getVolume:

Takes one parameter by value: a pointer to the Cone

Computes the volume

Returns the volume

output:

Takes one parameter by value: a pointer to the Cone

Calls the getVolume function to get the volume

Prints the height, radius, and volume in a neat format

Has a return type of void

Put the main function first.
Use the function and variable names specified above.
Arrange the functions in the order listed above.

height a double, the height of the cone radius a double, the radius of the base of the cone

Explanation / Answer

#include<iostream>

using namespace std;

const double PI = 3.14159265358979323846;

struct Cone{
  
   double height;
   double radius;
  
  
};

void input(double &, double &);
void setUp(Cone *ptr, double , double);
void output(Cone *ptr);
double getVolume(Cone *ptr);

int main(){
  
   Cone *ptr;
  
   double height, radius;
  
   ptr = new Cone;
  
   input(height, radius);
  
   setUp(ptr, height, radius);
  
   output(ptr);
  
  
   return 0;
}

void input(double &height, double &radius){
  
   cout<<"Enter height: ";
   cin>>height;
   cout<<"Enter radius: ";
   cin>>radius;
}
void setUp(Cone *ptr, double height, double radius){
   ptr->height = height;
   ptr->radius = radius;
}

double getVolume(Cone *ptr){
   return PI*ptr->height*ptr->radius*ptr->radius/3;
}

void output(Cone *ptr){
   cout<<"Height: "<<ptr->height<<endl;
   cout<<"Radius: "<<ptr->radius<<endl;
   cout<<"Volume: "<<getVolume(ptr)<<endl;
}

/*

Output:

Enter height: 12
Enter radius: 34
Height: 12
Radius: 34
Volume: 14526.7

*/

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