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Displaying Source Code(s)
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Program to calculate area of geometric figures.
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#include<iostream.h>
#include<math.h>
void main()
{
char character;
double area;
cout<<"circle(c)<BR>;
cout<<"square(s)<BR>;
cout<<"rectangle(r)<BR>;
cout<<"triangle(t)<BR>;
cout<<"Select c,s,r or t:";
loop:
cin>>character;
if((character=='c')||(character=='C'))
{
double r;
const double pi=3.142;
cout<<"Enter radius:";
cin>>r;
area=pi*pow(r,2);
}
else if((character=='s')||(character=='S'))
{
double l;
cout<<"Enter length:";
cin>>l;
area=pow(l,2);
}
else if((character=='r')||(character=='R'))
{
double l,w;
cout<<"Enter length:";
cin>>l;
cout<<"Enter width:";
cin>>w;
area=l*w;
}
else if((character=='t')||(character=='T'))
{
double b,h;
cout<<"Enter base:";
cin>>b;
cout<<"Enter height:";
cin>>h;
area=h*b/2;
}
else
{
cout<<"Select only c,s,r or t:";
goto loop;
}
cout<<"Area:"<<area<<endl;
} |
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123
Eng