How do you write a code that displays the dimension of a letter size 8.5 x 11-inch sheet of paper in millimeters if there are 25.4 millimeters per inch?

Answer 1

To get you started, you need a simple conversion function to convert inches to millimeters. Here's an example using the literal constant 25.4:

constexpr double convert_inch_to_mm (const double inches) {return inches * 25.4;}

Answer 2

#include<iostream>

const double inches2millimetres = 25.4; // global constant

int main() {

std::cout << "Enter paper length (inches): ";

double input;

std::cin >> input;

double output {input * inches2millimetres};

std::cout << "Paper length (millimetres): " << output << std::endl;

}