C++ struct structure to model volume of room

#include <iostream>
using namespace std;
struct Measure/*from w  ww.  j  a v  a 2 s  . c o m*/
{
   int feet;
   float inches;
};
struct Volume
{
   Measure length;
   Measure width;
   Measure height;
};
int main()
{
   float l, w, h;
   Volume room1 = {  { 16, 3.5 }, { 12, 6.25 }, { 8, 1.75 } };
   l = room1.length.feet + room1.length.inches/12.0;
   w = room1.width.feet  + room1.width.inches /12.0;
   h = room1.height.feet + room1.height.inches/12.0;
   cout << "Volume = " << l*w*h << " cubic feet\n";
   return 0;
}