# C++ Exercises

## C++ Program to calculate the volume and surface of the Rectangular Solid.

Let see the program to calculate the volume and surface of the Rectangular Solid.

```
Example:

Formula:
Rectangular Solid

```
```
/* to calculate the volume of the Rectangular Solid. */
#include <iostream>

using namespace std;
int main()
{
double length,width,height,volume;

cout<<"Enter length of Rectangular Solid :";
cin>>length;
cout<<"Enter width of Rectangular Solid :";
cin>>width;
cout<<"Enter length of Rectangular Solid :";
cin>>height;
volume=length*width*height;
cout<<"volume of Rectangular Solid = :"<<volume<<" units."<<endl;

return 0;
}
```
##### Output:
```
Enter length of Rectangular Solid :1
Enter width of Rectangular Solid :2
Enter length of Rectangular Solid :3

Volume of Rectangular Solid = :6 sq. units.

```
```
/* to calculate the surface of the Rectangular Solid. */
#include <iostream>

using namespace std;
int main()
{
double length,width,height,surface;

cout<<"Enter length of Rectangular Solid :";
cin>>length;
cout<<"Enter width of Rectangular Solid :";
cin>>width;
cout<<"Enter length of Rectangular Solid :";
cin>>height;
surface=2*length*width+2*width*height+2*length*height;
cout<<"surface of Rectangular Solid = :"<<surface<<" sq. units."<<endl;

return 0;
}

```
##### Output:
```
Enter length of Rectangular Solid :2
Enter width of Rectangular Solid :3
Enter length of Rectangular Solid :4

surface of Rectangular Solid = :52 sq. units.

```