Cuboid and Cylinder

#include<iostream.h>

#define PI 22/7
//#include"cube.cpp"
#include<stdlib.h>

class Cuboid {
	float length; //declaration of dimensions
	float breadth;
	float height;
	float volume;
	float lsa;
	float tsa;
public:
	float fvol(); //declaration of function for finding values
	float ftsa();
	float flsa();
	void setval(float ,float , float);
};

void Cuboid::setval(float d, float e, float f) //function to set values of the cuboid
{
	Cuboid::length = d;
	Cuboid::breadth = e;
	Cuboid::height = f;
}

float Cuboid::fvol() //function to find volume
{
	Cuboid::volume = Cuboid::breadth*Cuboid::height*Cuboid::length;
	return Cuboid::volume;
}

float Cuboid::ftsa() //function to find total surface area
{
	return Cuboid::tsa=2*((Cuboid::breadth*Cuboid::length)+(Cuboid::breadth*Cuboid::height)+(Cuboid::length*Cuboid::height));
}
float Cuboid::flsa() //function to find curved suface area
{
	return Cuboid::lsa=2*((Cuboid::breadth*Cuboid::height)+(Cuboid::height*Cuboid::length));
}

class Cylinder{
	float r, h;//declaring dimesions
	float volume;
	float tsa;
	float csa;
public:
	void csetval(float a, float b);
	float cfvol(){return Cylinder::volume = Cylinder::r*Cylinder::r* Cylinder::h * PI;};
	float cftsa(){return Cylinder::tsa = ((2*PI*Cylinder::r*Cylinder::h)+2*(2*PI*Cylinder::r*Cylinder::r));};
	float cfcsa(){return Cylinder::csa = 2*PI*Cylinder::r*Cylinder::h;};
};

void Cylinder::csetval(float a, float b)
{
	Cylinder::r = a;
	Cylinder::h = b;
}


void cubo();
void cyl();
float *data;
void main()
{
	int choice;
	cout<<"Menu:\n"<<"1)Cuboid\n"<<"2)Cylinder\n"<<endl<<"Enter your choice"<<endl;
	cin>>choice;
	switch(choice)
	{
	case 1:
		cubo();
		break;
	case 2:
		cyl();
		break;
	}
	delete[] data;
}
void cubo()
{
	data = new float[8];
	int d;
	int msg;
	cout<<endl<<"Menu:\n"<<"\n1)l, b, h are given\n2)l is not given\n3)b is not given\n4)h is not given\nEnter your choice: ";
	cin>>msg;
	switch(msg)
	{
	case 1: 
		cout<<"You have selected cube "<<endl;
		Cuboid cube;
		cout<<"Enter l, b, h: "<<endl;
		
		cin>>data[0]>>data[1]>>data[2];
		cube.setval(data[0], data[1], data[2]);
		cout<<"What do you want to find? \n1)Volume\n2)Curved Surface Area\n3)Total Surface Area"<<endl;
		cin>>d;
		switch(d)
		{
		case 1: 
			data[3] = cube.fvol();
			cout<<"The Volume is: "<<data[3]<<"\n";
			break;
		case 2: 
			data[4] = cube.flsa();
			cout<<"The Lateral Surface area is: "<<data[4]<<"\n";
			break;
		case 3: 
			data[5] = cube.ftsa();
			cout<<"The Total Surface Area is: "<<"\n";
			break;
		}
		break;
	case 2:
		cout<<"Enter b, h: ";
		cin>>data[2]>>data[1];
		cout<<"\nWhat is given?\n1)Volume\n2)LSA\n3)TSA\nEnter your choice: "<<endl;
		cin>>d;
		switch(d)
		{
		case 1: 
			cout<<"Enter the Volume: ";
			cin>>data[3];
			data[0]=data[3]/(data[2]*data[1]);
			cout<<endl<<"\nThe length is "<<data[0]<<endl;
			break;
		case 2:
			cout<<"Enter the LSA: ";
			cin>>data[4];
			data[0]=((2*data[2]*data[1])-data[4])/(2*data[1]);
			cout<<"\nThe length is "<<data[0]<<endl;
			break;
		case 3:
			cout<<"Enter the TSA: ";
			cin>>data[5];
			data[0]=((2*data[2]*data[1])-data[5])/(2*(data[2]+data[1]));
			cout<<"\nThe length is: "<<data[0]<<endl;
			break;
		}
	}
}

void cyl() //some more function to be added for cylinder
{
	int choice;
	data = new float[5];
	cout<<"You've selected cylinder"<<endl;
	Cylinder cyl;
	cout<<"Enter radius height: ";
	cin>>data[0]>>data[1];
	cyl.csetval(data[0], data[1]);
	cout<<"\n1)Find volume\n2)Find csa\n3)Find tsa\nEnter choice: ";
	cin>>choice;
	switch(choice)
	{
	case 1: 
		data[2]=cyl.cfvol();
		cout<<"\nThe volume is: "<<data[2]<<endl;
		break;
	case 2:
	data[3]=cyl.cfcsa();
	cout<<"\nThe curved surface area is: "<<data[3]<<endl;
	break;
	case 3:
		data[4]=cyl.cftsa();
		cout<<"\nThe Total Surface area is: "<<data[4]<<endl;
		break;
	}
}

//Please include code for other solides like cones, pyramids also. This is opensource so make modifications.