Redo problem 2 triangle.cc where you have to define and use the following functions: (a) isTriangle - takes 3 sides of a triangle and returns true if they form a triangle, false otherwise.
Redo problem 2 triangle.cc where you have to define
and use the following functions:
(a) isTriangle - takes 3 sides of a triangle and returns true if they form a triangle,
false otherwise.
(b) isIsosceles - takes 3 sides of a triangle and returns true if they form an isosceles
triangle, false otherwise.
(c) isEquilateral - takes 3 sides of a triangle and returns true if they form an
equilateral triangle, false otherwise.
(d) isRight - takes 3 sides of a triangle and returns true if they form a right triangle,
false otherwise.
this is the question and this is my work for problem 2
// This program prompts a user to enter the lengths of
// the 3 sides of a triangle, check if they form a triangle,
// and prints the triangle type: right, isosceles, equilateral,
// or scalene
#include <iostream>
#include <cmath>
using namespace std;
// Constant Declarations
const double E = .0001;
int main() {
double side1, side2, side3;
bool isTriangle, isRight, isEquilateral, isIsosceles;
cout << "Enter the lengths of the 3 sides of a triangle -- ";
cin >> side1 >> side2 >> side3;
isTriangle = side1 + side2 > side3 &&
side1 + side3 > side2 &&
side2 + side3 > side1;
if (isTriangle) {
cout << "This is ";
isEquilateral = fabs(side1 - side2) < E &&
fabs(side1 - side3) < E;
isIsosceles = fabs(side1 - side2) < E ||
fabs(side1 - side3) < E ||
fabs(side2 - side3) < E;
if (isEquilateral)
cout << "an equilateral ";
else if (isIsosceles)
cout << "an isosceles ";
else
cout << "a scalene ";
isRight = fabs(pow(side1, 2) - pow(side2, 2) - pow(side3, 2)) < E ||
fabs(pow(side2, 2) - pow(side1, 2) - pow(side3, 2)) < E ||
fabs(pow(side3, 2) - pow(side1, 2) - pow(side2, 2)) < E;
if (isRight)
cout << "and right ";
cout << "triangle" << endl;
} else
cout << "This is not a triangle" << endl;
return 0;
}
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