Quote:
Originally Posted by Feher
 (I should have written approximate)
You are right. It works when the length to width ratio is same in both the devices. Usually most of the devices have similar shape. Even if they had a slightly different shape - the difference will be very less, so this shortcut works |
Thanks for the response/explanation, and for not starting out with "You idiot, don't you know that..." (which I was worriedly anticipating, with my limited knowledge of math/geometry).
That approximation sounds good enough to me, as it's apparently a more accurate value than the "30% more" that Kobo has boasted!