the edge of cube 10.5. find the total sur face cm²
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Given edge of the cube = 10.5 mm
we know 1mm = 0.1cm
=> 10.5 mm =10.5 ×0.1cm = 1.05cm
Now total surface of cube = 6a^2
= 6(1.05)(1.05) = 6×1.1025 = 6.615cm2
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