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  1.  
  2.  
  3. #include <iostream>
  4. #include <iomanip>
  5. #include <cmath>
  6. using namespace std;
  7.  
  8. int main() {
  9.     int choice; //INPUT - THE CHOICES TO BE MADE  1-4
  10. 	float radiusCircle; //INPUT - THE RADIUS OF THE CIRCLE 
  11. 	float lengthRectangle; //INPUT - THE LENGTH OF THE RECTANGLE
  12. 	float widthRectangle; //INPUT - THE WIDTH OF THE RECTANGLE 
  13. 	float baseTriangle; //INPUT - THE BASE OF THE TRIANGLE 
  14. 	float heightTriangle; //INPUT - THE HEIGHT OF THE TRIANGLE 
  15. 	float areaOfCircle;  //OUTPUT - THE AREA OF THE CIRCLE TO BE COMPUTED 
  16. 	float areaOfRectangle; //OUTPUT - THE AREA OF THE RECTANGEL TO BE COMPUTED
  17. 	float areaOfTriangle; //OUTPUT - THE AREA OF THE TRIANGLE TO BE COMPUTED 
  18.  
  19. //
  20. // Initialize the variables
  21. cout << "Geometry Calculator" << endl;
  22.  cout << "1. Calculate the Area of a Circle" << endl;
  23.  cout << "2. Calcualte the Area of a Rectangle" << endl;
  24.  cout << "3. Calcualte the area of a Triangle" << endl;
  25.  cout << "4. Quit" << endl;
  26.  cin >> choice;
  27.  
  28.  cout << fixed << setprecision(2) << endl;
  29.  if (choice >= 0 and choice <=4) {
  30.  	switch (choice) {
  31.  	case 1:
  32.  		cout << "Please enter the radius of the circle " << endl;
  33.  		cin >> radiusCircle;
  34.  		if (radiusCircle > 0) {
  35.  			areaOfCircle = 3.14159 * (pow(radiusCircle, 2));
  36.  		cout << "The area of the circle is " << areaOfCircle;
  37.  		}
  38.  		else {
  39.  			cout << "Cannot have negative radius " << endl;
  40.  		}
  41.  		break;
  42.  	case 2:
  43.  		cout << "Please enter the length of the rectangle " << endl;
  44.  		cin >> lengthRectangle;
  45.  		if (lengthRectangle < 0 ) {
  46.  			cout << "Cannot have a negative length " << endl;
  47.  		break;
  48.  		}
  49.  
  50.  		cout << "Please enter the width of the rectangle " << endl;
  51.  		cin >> widthRectangle;
  52.  		if (widthRectangle < 0 ) {
  53.  			cout << "Cannot have a negative width " << endl;
  54.  		break;
  55.  		}
  56.  		else {
  57.  			areaOfRectangle = lengthRectangle * widthRectangle;
  58.  			cout << "The area of the of the rectangle is " << areaOfRectangle;
  59.  		}
  60.  		break;
  61.  	case 3:
  62.  		cout << "Please enter the base of the triangle " << endl;
  63.  		cin >> baseTriangle;
  64.  		if (baseTriangle < 0) {
  65.  			cout << "Cannot have a negative base " << endl;
  66.  		break;
  67.  		} 
  68.  		cout << "Please enter the height of the triangle " << endl;
  69.  		cin >> heightTriangle; 
  70.  		if (heightTriangle < 0) {
  71.  			cout << "Cannot have a negative height" << endl;
  72.  		break;
  73.  		}
  74.  		else {
  75.  			areaOfTriangle = baseTriangle * heightTriangle * .5;
  76.  		cout << "The area of the triangle is " << areaOfTriangle << endl;
  77.  		}
  78.  		break;
  79.  	case 4: 
  80.  		cout << "Goodbye" << endl;
  81.  		break;
  82.  
  83.  
  84.  
  85.  }
  86. }
  87. else {
  88. 	cout << "INVALID MENU OPTION " << endl;
  89. }
  90.  
  91.  
  92.  return 0;
  93. }
  94.  
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
stdout
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Geometry Calculator
1. Calculate the Area of a Circle
2. Calcualte the Area of a Rectangle
3. Calcualte the area of a Triangle
4. Quit

INVALID MENU OPTION
https://ideone.com/XU7AFa
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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