Question

A restaurant called Tony’s Pizza Palace needs a program to help calculate rhe number of slices a pizza of any aize can be divided into, and hoe many pizzas should be ordered for a party. The program will assume each person at the party will eat 3 slices of pizza each.

The program should prompt the user for the diameter of the pizzas they wish to order. it will also ask the user for the number of people who will be at the party. The program will then calculate and display the number of slices per pizza and the number of pieces needed for the party (must be full pizzas).

- A slice must have an area of 14.125 inches

- Number of slices per pizza is the area of the pizza divided by the area of a slice

- Area of a piece is calculated with Area = Pl*r^2

•Pl = 3.14159

• r is the radius of the pizza

- The number of slices should be a fixed point and rounded to one decimal place

- Pl must be a named constant

include psuedocode

C++ language

Answer 1

#include<iostream>
#include<cmath>

using namespace std;

int main()
{
    const double areaOfSlice = 14.125;//In inches^2
    const double PI = 3.14159;
    double diameter, radius, areaOfPizza;
    int numberOfPeople;

    cout << "Enter diameter of pizzas: ";
    cin >> diameter;
    cout << "Enter number of people who will be at the party: ";
    cin >> numberOfPeople;

    radius = diameter/2;//Radius of pizza

    areaOfPizza = PI*radius*radius;//Area of a piece

    int numberOfSlicesPerPizza = areaOfPizza/areaOfSlice;//Calculate number of slices in a single pizza

    int numberOfPizzas = ceil(numberOfPeople * 3.0 / numberOfSlicesPerPizza);//Calculate number of pizzas needed

    cout << "Number of slices per pizza: " << numberOfSlicesPerPizza << endl;
    cout << "Number of pizzas needed for the party: " << numberOfPizzas << endl;
    return 0;
}

SAMPLE OUTPUT:

Pseudocode:

START
    input diameterOfPizza
    input numberOfPeople
    radius = diameterOfPizza
    areaOfPizza = 3.14159*radius*radius
    numberOfSlicesPerPizza = areaOfPizza/14.125
    numberOfPizzas = ceil(numberOfPeople*3/numberOfSlicesPerPizza)
    output numberOfSlicesPerPizza
    output numberOfPizzas
END