Find the total number of rectangles (include squares also as rectangles) in a 8 * 8 standard chessboard?

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Guest

  • Jan 11th, 2007
 

total no. of squares are 8*8+4*4+2*2+1

=64+16+4+1

=85

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Amit Garg

  • Feb 13th, 2015
 

Answer is = 204.
Here is the logic
single box= 8x8
double boxes=7x7
three boxes =6x6 ....
and so on till eight boxes = 1x1 = 1
so 64+49+36+25+16+9+4+1 = 204

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