C++ Programming

Add 4 new Functions to this Project:

1. calcAreaCircle()

2. calcAreaSquare()

3. calAreaRectangle()

4.. calAreaTriangle()

Each of these functions will process an Area calculation:

(i.e. for a Circle, your function would do the following 4 steps:

1. prompt the User for to enter a radius.

2. Read in the radius,

3. calculate the area by using the formula a=pi*Radius squared.

4. Then print out the area of the circle. )

Lastly, modify the switch statement in the main function. Your main function will no longer do all the work to process the area calculations. Your main() function will call the 4 new functions that you just built. If the uses enters a C, call the function calcAreaCircle() to process the calculation of the area of a circle. Do the same for the other 3 figures.

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#include using namespace std; int main() { char ch; float radius = 0.0, side = 0.0, width =0.0, length = 0.0, base =0.0, height = 0.0; float pi = 3.14159; double area = 0.0; while(ch !='X' || ch !='x') { cout << " ************* MENU ***************" << endl; cout << "\tR. Rectangle \tC. Circle \tT. Trianle \tS. Square \tX. Exit Enter a letter to find area "; cin>>ch; switch(ch) { case 'C': cout<<"Enter Radius: "< cin>>radius; area = pi * radius * radius; cout<<"Circle Area is : "< area = 0.0; break; case 'c': cout<<"Enter Radius: "< cin>>radius; area = pi * radius * radius; cout<<"Circle Area is : "< area = 0.0; break; case 'S': cout<<"Enter side: "< cin>>side; area = side * side ; cout<<"Square Area is : "< area = 0.0; break; case 's': cout<<"Enter side: "< cin>>side; area = side * side; cout<<"Square Area is : "< area = 0.0; break; case 'R': cout<<"Enter Width : "< cin>>width; cout<<"Enter length : "< cin>>length; area = width * length; cout<<"Rectangle Area is : "< area = 0.0; break; case 'r': cout<<"Enter Width : "< cin>>width; cout<<"Enter length : "< cin>>length; area = width * length; cout<<"Rectangle Area is : "< area = 0.0; break; case 'T': cout<<"Enter Base : "< cin>>base; cout<<"Enter Height : "< cin>>height; area = (base * height)/2; cout<<"Triangle Area is : "< area = 0.0; break; case 't': cout<<"Enter Base : "< cin>>base; cout<<"Enter Height : "< cin>>height; area = (base * height)/2; cout<<"Triangle Area is : "< area = 0.0; break; case 'X': exit(0); case 'x': exit(0); } } return 0; }