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Measuring Size

The length ,b...

Question

The length ,bredth and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m , and 2.01cm respectively . Give the area and volume of the sheet to correct significant figure .

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Solution

The area is = 2(4.234 Ã— 1.005 + 1.005 Ã— 0.0201 + 0.0201 Ã— 4.234) = 8.721 m²
The volume is = 4.234 Ã— 1.005 Ã— 0.0201 = 0.086 m³

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