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A cube has a side of length . Find the surface area and volume in correct significant figures.
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a
5.485 m2 and 12.85 m3
b
5.485 m2 and 15.85 m3
c
7.485 m2 and 12.85 m3
d
7.485 m2 and 15.85 m3
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Correct option is A
V=a3=(2.342 m)3=12.84578569 m3=12.85 m3 (rounding off to four significant digits)S=a2=(2.342)2 m2=5.484964 m2=5.485 m2 (rounding off to four significant digits)
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