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1x1 = 1 2x2 = 4 3x3 = 9 4x4 = 16 ... Up to 31x31
square numbers are the numbers that are... 1x1=1 2x2=4 3x3=9 4x4=16 ..... 1,4,9,16,25,36,49,64,81,100,121,144.........
That will depend on the dimensions of the square in question. If the square has a length of 1cm, then 1x1=1cm2. If the square has a length of 2cm, then 2x2=4cm2.
8 squares. One of 11x11 Five of 2x2 Two of 1x1
half of a half is a fourth, which is also called a quarter 1/2 + 1/2 = (1x1)/(2x2) = 1/4