1. Chess Board......

How many squares are there on a chessboard?? (the answer is not 64)

Can you extend your technique to calculate the number of rectangles on a chessboard.

2. i think they are 66...

3. omg!! there are many!!!! cant count!!

4. i found the answer hope it is correct...

There are many more different-sized squares on the chessboard.
The complete list of answers is shown below:
1, 8x8 square
4, 7x7 squares
9, 6x6 squares
16, 5x5 squares
25, 4x4 squares
36, 3x3 squares
49, 2x2 squares
64, 1x1 squares

Therefore, there are actually 64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 squares on a chessboard! (in total 204).

5. OK Well Done Job Sunny......
Now extend your technique to calculate the number of rectangles on a chessboard?????????

6. well i think the answer is:
28^2 = 784.

1^3 +2^3 +...+7^3 = (n(n+1)/2)^2

7. sunny did u "search" for the answer?

8. 204 is close But there is more square available in chess board. answers will be post later.....
Now extend your technique to calculate the number of rectangles on a chessboard?????????

9. muffy actually, i answered first then i remembered that i had the solution in one of my note books from my university then i found it....

10. ok cheers!!

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