C program to find area of a circle

C++ program to find area of a circle 

Area of Circle in C++ | C Assignment to Find area of Circle | Calculate area of Circle when radius is given as input in C++ language

    #include 
    #include 
    void main()
    {
    clrscr();
    float r,a;
    cout<<"enter radius ";
    cin>>r;
    a=3.14*r*r;
    cout<<"The area is "<