Length, breadth and thickness of a rectangular slab are 4.234 m, 1.005 m and 2.01 m respectively. Find volume of the slab to correct significant figures.

8.55 m^{3}

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8.552 m^{3}

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8.6 m^{3}

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None of the above

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Solution

The correct option is A $8.55 m^{3}$
l = 4.234 m 4 significant figures
b = 1.005 m 4 significant figures
w = 2.01 m 3 significant figures
Therefore, Volume = lbw= 8.55 .........3 significant figures

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