calculate the
number of rectangles that can be drawn on a chessboard.

• number of rectangles and squares=(8*7/2)*(8*7/2)=784
  number of squares= (8(8+1)(2*8+1))/6=204
  so number of rectangles =784-204=580
• 12 years agoHelpfull: Yes(0) No(2)
• i think 1296 rectangles.are there in chess board
• 12 years agoHelpfull: Yes(0) No(0)
• horizontal combinations are (1+2+3+4+5+6+7+8). It means we have 36 rectangle horizontally.
  The same thing for the vertical rectangles.
  The total rectangles are 36*36= 1296
• 12 years agoHelpfull: Yes(0) No(0)