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Unformatted text preview: (b) the unit of that time to minutes and correct the answer to 2 significant figures. 4. Peter needs to prepare for the lunch. He use 75cm × 120cm newspaper to cover a table of dimensions 10m ×3.2m. (a) Estimate the area of the newspaper by first rounding off each dimension correct to 2 significant figures and give your answer in m 2 . (b) Estimate how many sheets of newspaper are needed to cover the whole table....
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- Winter '11