Question

Create a C++ to calculate how many circles can fit in a square. Ask the user for the side of the square and the diameter of the circle. Tell the user how many of those circles can fit in the square. They do not have to be full circles. For instance, the answer can be 2.79.

Use 3.14159265358979 for the value of PI and PI must be a constant

Format your output to display two decimals.

Answer 1

C++ CODE:

#include <iomanip>

#include <iostream>

using namespace std;

int main() {

    const double PI = 3.14159265358979;

    double side, diameter, squareArea, circleArea;

    double n;  // Number of circles that can fit inside the square

    // Input

    cout << "Enter side of the square: ";

    cin >> side;

    cout << "Enter diameter of the circle: ";

    cin >> diameter;

    // Calculations

    squareArea = side * side;

    circleArea = PI * (diameter / 2) * (diameter / 2);

    n = squareArea / circleArea;

    // Output

    cout << "Circles that can fit in the square: " << setprecision(2) << fixed << n << endl;

    return 0;

}

SAMPLE OUTPUTS:

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