2006-09-20 14:53:21 · 13 answers · asked by drtbkzrok5693 1 in Science & Mathematics ➔ Mathematics
51
49 plus the 2 people playing
2006-09-20 14:55:23 · answer #1 · answered by Ragdoll 4 · 3⤊ 2⤋
7x7 = 1 square
6x6 = 4 squares
5x5 = 9 squares
4x4 = 16 squares
3x3 = 25 squares
2x2 = 36 squares
1x1 = 49 squares
1+4+9+16+25+36+49 = 140 SQUARES
2006-09-20 22:02:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋
so far a few have 'steered' you in the correct direction BUT none have helped you learn what is going on very clearly
there are 49 1x1 squares
there are a 2x2 squares
there are b 3x3 squares
there are c 4x4 squares
.......
there is 1 7x7 square
... think of each square as having a left-bottommost or whatever fixed position u want but then move that starting point in a structured manner so you make sure you count out distinct quantities
like say the 2x2 and say you number your columns as 1 through 7 and rows 1 through 7 and assume for the sake of argument row 1 is across the bottom and row 7 across the top , with column 1 leftmost and column 7 right most ... so proceed left to right and eventually from bottom to top ....
for example
start your 2x2 square with leftmost corner at row 1 column 1, the next "distinct" 2x2square would then start at row 1 column 2 .... and the last one would be column 6 [because you cant have the square next to it go off the board .....] .... proceed up your columns ...being careful not to go off the "top" of the board
so figure out how many distinct squares that "starting square" can occupy in each case .....
2006-09-20 22:11:17 · answer #3 · answered by xkey 3 · 0⤊ 0⤋
No, because you can have 2 by 2 squares, 3 by 3, 4 by 4, 5 by 5, 6 by 6 and one seven by seven.
49 one by one
36 2 by 2
25 3 by 3
16 4 by 4
9 5 by 5
4 6 by 6
1 7 by 7
total: 140
2006-09-20 21:57:31 · answer #4 · answered by Vincent G 7 · 1⤊ 1⤋
=7x7 + 6x6 + 5x5 + 4x4 + 3x3 + 2x2 + 1x1
=49 + 36 + 25 + 16 + 9 + 4 + 1
=140
2006-09-20 22:02:03 · answer #5 · answered by TheDude 3 · 0⤊ 1⤋
If it is seven by seven squares, the area would be 49 squares-squared. If it is in inches and there is more than one square an inch, who knows?
2006-09-20 21:56:23 · answer #6 · answered by Billy W 3 · 0⤊ 0⤋
Is that because every 2 by 2 squares also forms a square, every 3 by 3 squares also forms a square, and so on? Even the entire board is a square.
2006-09-20 21:56:14 · answer #7 · answered by fcas80 7 · 0⤊ 0⤋
If the board is 7x7, then there are 49 squares. However, most checkers or chess boards are 8x8, or 64 squares.
2006-09-20 21:56:09 · answer #8 · answered by apnate 3 · 0⤊ 0⤋
50
2006-09-20 21:56:58 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Usually 49
Checkerboards are 8x8= 64
If you count the board itself (plus the 7x7) it adds up to 50
2006-09-20 22:02:14 · answer #10 · answered by Anonymous · 0⤊ 1⤋
I think if you didn't use the suares over again in counting there would be about 67 but like most said a checkerboard would be an eight by eight. Thats why there are 8 pawns in chess!
2006-09-20 22:03:00 · answer #11 · answered by sixfoot8bkr 3 · 0⤊ 1⤋