Previous forum but have some code typed out. Still need help though!!

[atl13]

Write a Pyramid class. For this program challenge, the pyramid is a right square pyramid, it has a square base and its four sides are isosceles triangles of equal dimensions. The class has the following member variables:
 base — a double for the sides of the pyramid's base in feet
 slant— a double for the slant height of all sides from the base to the apex in feet
The class should have the following member functions:
 Default Constructor—a default constructor that sets base and slant to 0.0
 Constructor that accepts the base and slant of the pyramid as arguments
 setBase—a mutator function for the base variable
 getBase—an accessor function for the base variable
 setSlant—a mutator function for the slant variable
 getSlant—an accessor function for the slant variable
 getBaseArea—returns the base area of the pyramid, which is calculated as
baseArea = base * base
 getFaceArea—returns the area of a face of the pyramid, which is calculated as
faceArea = base * slant * 0.5
 getTotalArea—returns the total area of the pyramid, which is calculated as
totalArea = faceArea * 4 + baseArea
Write a program that demonstrates the Pyramid class by asking the user for the pyramid's base and the slant of the pyramid's sides, creates a Pyramid object, and then reports the pyramid’s surface area.
Validation: Values must be entered in the set functions. All values entered must be greater than zero. If a zero or negative value is entered, the user must be given two more attempts to enter a valid value. If the base value is invalid after the total of three attempts, provide the user with a message and exit the program. If the slant value is invalid after the total of three
attempts, provide the user with a message and exit the program.

#include <iostream>
#include "Pyramid.h"
#include <cstdlib>
using namespace std;

void heading();
double validate();

int main()
{
double pyramidSide,
pyramidRamp;

heading();

cout << "Enter the side measurement of square base (feet): ";
pyramidSide = validate();

if(pyramidSide <= 0)
{
cout << "Program exiting. Incorrect Data entered.";
system("pause");
return 1;
}

cout << "Enter slant measurement of side (feet): ";
pyramidRamp = validate();

if(pyramidRamp <= 0)
{
cout << "Program exiting. Incorrect Data entered.";
system("pause");
exit(EXIT_FAILURE);
}

Pyramid pyra(pyramidSide, pyramidRamp);

if (pyramidSide > 0 && pyramidRamp > 0)
{
cout << "The total surface area of the pyramid is " << pyra.getTotalArea() << "square feet.";
}
else
{
cout << "Incorrect Data. Calculation cannot be completed." << endl;
}

system("pause")
return 0;
}

void heading()
{
cout << "This program calculates the surface area of a right square pyramid.\n\n"
<< "You will input 2 values in feet: the base's side and the slant measurement.";

return;
}

[kbw]

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