Question

Code in C++

Given class Triangle (in files Triangle.h and Triangle.cpp), complete main() to read and set the base and height of triangle1 and of triangle2, determine which triangle's area is larger, and output that triangle's info, making use of Triangle's relevant member functions.

Ex: If the input is:

3.0 4.0

4.0 5.0

where 3.0 is triangle1's base, 4.0 is triangle1's height, 4.0 is triangle2's base, and 5.0 is triangle2's height, the output is:

Triangle with larger area:

Base: 4.00

Height: 5.00

Area: 10.00

___________________________________________________________________

GIVEN (in main.cpp):

#include
#include "Triangle.h"
using namespace std;

int main(int argc, const char* argv[]) {
Triangle triangle1;
Triangle triangle2;

// TODO: Read and set base and height for triangle1 (use SetBase() and SetHeight())
  
// TODO: Read and set base and height for triangle2 (use SetBase() and SetHeight())

// TODO: Determine larger triangle (use GetArea())
cout << "Triangle with larger area:" << endl;

// TODO: Output larger triangle's info (use PrintInfo())

return 0;
}

Answer 1

Triangle.h

#pragma once
#include<iostream>
#include<iomanip>
using namespace std;

class Triangle
{
private:
   double base, height;
public:
   Triangle();
   Triangle(double, double);
   double GetBase();
   void SetBase(double);
   double GetHeight();
   void SetHeight(double);
   double CalculateArea();
   void PrintInfo();
};

Triangle.cpp

#include "Triangle.h"

Triangle::Triangle()
{
   this->base = this->height = 0.0;
}

Triangle::Triangle(double base, double height)
{
   SetBase(base);
   SetHeight(height);
}

double Triangle::GetBase() { return base; }

void Triangle::SetBase(double base) { this->base = base; }

double Triangle::GetHeight() { return height; }

void Triangle::SetHeight(double height) { this->height = height; }

double Triangle::CalculateArea() { return (0.5 * base * height); }

void Triangle::PrintInfo()
{
   cout << setprecision(2) << fixed;
   cout << "Base: " << base << "\tHeight: " << height << "\tArea: " << CalculateArea() << endl;
}

Main.cpp (Main class)

#include "Triangle.h"

int main()
{
   double base1, height1, base2, height2;
   Triangle triangle1, triangle2;
   cout << "Enter base and height (separated by space) of triangle 1: ";
   cin >> base1 >> height1;
   cout << "Enter base and height (separated by space) of triangle 2: ";
   cin >> base2 >> height2;
  
   triangle1.SetBase(base1);
   triangle1.SetHeight(height1);
   triangle2.SetBase(base2);
   triangle2.SetHeight(height2);

   double area1 = triangle1.CalculateArea();
   double area2 = triangle2.CalculateArea();

   cout << "\nTriangle with larger area:\n";

   if (area1 > area2)
       triangle1.PrintInfo();
   else
       triangle2.PrintInfo();

   return 0;
}

********************************************************* SCREENSHOT *******************************************************

CODE SCREENSHOTS :

1 |{ Main.cpp Triangle.cpp Triangle.h + x 9 TriangleWith LargerArea #pragma once 2 #include<iostream> 3 #include<iomanip> 4 using namespace std; 5 6 class Triangle 7 8 private: 9 double base, height; 10 public: 11 Triangle(); 12 Triangle(double, double); 13 double GetBase(); 14 void SetBase (double); 15 double GetHeight(); 16 void SetHeight(double); 17 double CalculateArea(); 18 void PrintInfo(); 19

(Global Scope) Main.cpp Triangle.cpp + x Triangle.h $ TriangleWithLargerArea #include "Triangle.h" 2 3 Triangle::Triangle 1 4 this->base = 5 6 this->height = 0.0; Triangle:: Triangle (double base, double height) 7 8 9 10 11 12 SetBase(base); SetHeight(height); 13 14 double Triangle::GetBase() { return base; } 15 16 17 18 void Triangle::SetBase (double base) { this->base = base; } double Triangle::GetHeight() { return height; } 19 void Triangle::SetHeight(double height) { this->height = height; } 20 21 22 23 double Triangle::CalculateArea() { return (0.5 * base * height); } Avoid Triangle::PrintInfo() { 24 25 26 27 28 cout << setprecision (2) « fixed; cout << "Base: " « base << "\tHeight: << height << "\tArea: << CalculateArea() << endl;

Main.cpp - X Triangle.cpp Triangle.h $ TriangleWithLargerArea #include "Triangle.h" (Global Scope) 1 2 3 int main() 4 { 5 6 7 8 9 double basel, heightı, base2, height2; Triangle trianglei, triangle2; cout << "Enter base and height (separated by space) of triangle 1: "; cin >> basel >> height1; cout << "Enter base and height (separated by space) of triangle 2: "; cin >> base2 >> height2; triangle1. SetBase(basel); triangle1.SetHeight(heighti); triangle2. SetBase(base2); triangle2. SetHeight(height2); 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 double areal = triangle1.CalculateArea(); double area2 = triangle2.CalculateArea(); cout << "\nTriangle with larger area: \n"; if (areal > area2) triangle1.PrintInfo(); else triangle2.PrintInfo(; return ;

CONSOLE OUTPUT :

A Microsoft Visual Studio Debug Console Enter base and height (separated by space) of triangle 1: 3.0 4.0 Enter base and height (separated by space) of triangle 2: 4.0 5.0 Triangle with larger area: Base: 4.00 Height: 5.00 Area: 10.00