The length and the radius of a cylinder measured with a slide calipers are found to be 4.54 cm and 1.75 cm respectively. Calculate the volume of the cylinder.
Length of the cylinder, l = 4.54 cm
Radius of the cylinder, r = 1.75 cm
Volume of the cylinder, V =πr2l = π (4.54) (1.75)2
The minimum number of significant digits in a particular term is three. Therefore, the result should have three significant digits, while the other digits should be rounded off.
Volume, V =πr2l
= (3.14)(1.75)(1.75)(4.54) = 43.6577 cm3
Since the volume is to be rounded off to 3 significant digits, we have: V = 43.7 cm3
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