... 1 cm = 10mm,1cm 2 = 1cm ×1cm = 10mm ×10mm = 100mm2, or 1mm 2 = 1 2 100 cm 2 ... 3280cm2 (c) Since 1 m = 100cm,1m 2 = 1m ×1m = 100cm ×100cm = 10000cm2, ...
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