Question

1. Triangle stuff.
   1. Write a function IsValid(side1, side2, side3) that takes as argument 3 positive integers and returns True if the three sides can form a triangle, False otherwise.
   2. Write a function Perimeter(side1, side2, side3) that takes 3 sides of a triangle and returns the perimeter of the triangle. Remember to only calculate the perimeter of valid triangles that you determined through the IsValid function.
   3. Now use Heron’s formula to calculate the area of a triangle with sides side1, side2, side3. Call this function Area(side1, side2, side3). Look up Heron’s formula online.

Answer 1

Note: Could you plz go this code and let me know if u need any changes in this.Thank You
_________________

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

// Creatingan Exception class
class InvalidTriangleException : public exception {
private:
public:
// Zero argumented constructor
InvalidTriangleException()
{
}

virtual const char* what() const throw()
{
return "** Invalid Triangle **";
}
} myex;

class Triangle {
private:
//Declaring variables
int side1;
int side2;
int side3;

public:
//Parameterized constructor
Triangle(int side1, int side2, int side3)
{
if ((side1 + side2) > side3
&& (side2 + side3) > side1
&& (side3 + side1) > side2) {
this->side1 = side1;
this->side2 = side2;
this->side3 = side3;
}
else {
throw myex;
}
}
//Getters
int getSide1()
{
return side1;
}
int getSide2()
{
return side2;
}
int getSide3()
{
return side3;
}
//This function will calculate area of triangle
double area()
{
// calculating the semi perimeter
double s = (side1 + side2 + side3) / 2.0;
// calculating area
double area = sqrt(s * (s - side1) * (s - side2) * (s - side3));
return area;
}
//This function will calculate perimeter of triangle
double perimeter()
{
// calculating perimeter
double peri = side1 + side2 + side3;
return peri;
}
};
int main()
{
//Declaring variables
int side1, side2, side3;

/* This loop continues to execute until
       * the user enters valid sides of triangle
       */
while (true) {
cout << "Triangle#1" << endl;
cout << "Enter side 1:";
cin >> side1;
cout << "Enter side 2:";
cin >> side2;
cout << "Enter side 3:";
cin >> side3;
try {
Triangle t(side1, side2, side3);
cout << "Area of Triangle :" << t.area() << endl;
cout << "Perimeter of Triangle :" << t.perimeter() << endl;
break;
}
catch (exception& myex) {
cout << myex.what() << endl;
continue;
}
}

return 0;
}
___________________________

Output:

_______________Could you plz rate me well.Thank You