Question

In this exercise, you will modify the hypotenuse program shown earlier in Figure 9-6. Follow the instructions for starting C++ and viewing the ModifyThis13.cpp file, which is contained in either the Cpp8/Chap09/ModifyThis13 Project folder or the Cpp8/Chap09 folder. Remove both calculation tasks from the main function, and assign both to a program-defined value-returning function named getHypotenuse. Test the program appropriately.

//Hypotenuse.cpp - displays the length of a right
//triangle's hypotenuse

#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main()
{
double sideA = 0.0;
double sideB = 0.0;
double sumSqrs = 0.0;
double hypotenuse = 0.0;

//get length of two sides
cout << "Side a length: ";
cin >> sideA;
cout << "Side b length: ";
cin >> sideB;

//calculate the hypotenuse length
sumSqrs = pow(sideA, 2) + pow(sideB, 2);
hypotenuse = sqrt(sumSqrs);

//display the hypotenuse length
cout << fixed << setprecision(1);
cout << "Hypotenuse length: " << hypotenuse << endl;
return 0;
}   //end of main function

Answer 1

//Hypotenuse.cpp - displays the length of a right
//triangle's hypotenuse

#include <iostream>
#include <iomanip>
#include <cmath>

using namespace std;

double getHypotenuse(double sideA, double sideB){
   return pow(sideA, 2) + pow(sideB, 2);
}

int main()
{
double sideA = 0.0;
double sideB = 0.0;
double sumSqrs = 0.0;
double hypotenuse = 0.0;

//get length of two sides
cout << "Side a length: ";
cin >> sideA;
cout << "Side b length: ";
cin >> sideB;

//calculate the hypotenuse length
sumSqrs = getHypotenuse(sideA, sideB);
hypotenuse = sqrt(sumSqrs);

//display the hypotenuse length
cout << fixed << setprecision(1);
cout << "Hypotenuse length: " << hypotenuse << endl;
return 0;
}   //end of main function