Results 1 to 2 of 2

Thread: formula regarding rectangles on a chessboard

  1. Jul 4th, 2006, 03:17 PM #1
    soph2290
    soph2290 is offline

    Thread Starter
    New Member
    Join Date
    Jul 2006
    Posts
    1

    formula regarding rectangles on a chessboard

    recently i have been studying how many sqaures there are on an 8x8 chessboard and now extension work is to study how many rectangles there are are on an 8x8 chessboard

    i have worked out that there are 1296 rectangles and now i am trying to find a formula for it. i have researched on some other websites and they say that (9c2)(9c2)=1296 i understand why it is 9 (because there are 9 horizontal/vertical lines) but i don't understand why it is 'c2' could someone please explain?

    thanks very much
    Reply With Quote Reply With Quote
  2. Jul 4th, 2006, 06:27 PM #2
    Logophobic
    Logophobic is offline
    Frenzied Member
    Join Date
    Jun 2006
    Posts
    1,098

    Re: formula regarding rectangles on a chessboard

    It is 'c2' because each rectangle is defined by 2 horizontal/vertical lines.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules


Click Here to Expand Forum to Full Width