Answer no2

#include<iostream.h>

main()

{

                float rectangular, circle, triangle, fahrenheit, celcius, radius,f,c;

                float width,height,base;

                char selection;

                cout<<"calculate:";

                cout<<"\n\n a-rectangular";

                cout<<" \nb-triangle";

                cout<<"\nc-circle";

                cout<<"\nd-fahrenheit";

                cout<<"\ne-celcius";

cout<<"\n\nenter selection";

cin>>selection;

if (selection=='a')

{

cout<<"\nYour Selection is a and you are calculate rectangular.";

               

                cout<<"\nenter width";

                cin>>width;

                                cout<<"\nenter height";

                                cin>>height;

                                rectangular=width*height;

cout<<"\nthe answer is"<<rectangular;

}

else if (selection=='b')

{

cout<<"\nYour Selection is b and you are calculate triangle.";

cout<<"\nenter base";

cin>>base;

cout<<"\nenter height";

cin>>height;

cout<<"\nthe answer is"<<triangle;

triangle=(1/2*base*height);

}

else if (selection=='c')

{

circle=3.142 * radius * radius;

cout<<"\nYour Selection is c and you are calculate circle.";

cout<<"\n enter radius";

cin>>radius;

cout<<"\nthe answer is"<<circle;

}

else if (selection=='d')

{

;

cout<<"\nYour Selection is d and you are calculate fahrenheit.";

fahrenheit=(celcius*1/8)+32;

cout<<"\nenter celcius";

cin>>c;

cout<<"\nthe answer is"<<fahrenheit;

}

else

{

cout<<"\nYour Selection is e and you are calculate celcius.";

cout<<"\nenter fahrenheit";

cin>>f;

cout<<"\nthe answer is"<<celcius;

celcius=(f-32)*(5/9);

}

return 0;

}