Find the volume
A hallow garden roller 35 cm wide with girth 208 cm made cast iron 3 cm thick. Find volume iron weight roller, if iron weights 8.5gm/cubic cm. Question asked by: Aditya1211
Asked on: 21 Jan 2010
Volumes are a cubic measure.
Therefore when calculating a volume you need to multiply the three dimensions together.
Replied at: 21 Jan 2010Rate Answer
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Comments and other answers:
Roller is hollow.So assuming that 35 cm is the outer width, the outer radius will be 17.5cm(R)
Given thickness as 3 cm.
So inner radius = 17.5-3=14.5 cm(r)
Volume = pi x (R squared - r squared) x height
Here height = 208 cm. Substitute all the values in formula you will get the volume in cubic cm.
Wiehgt of the iron = Volume x 8.5 gm
Date of comment: Thu, Jun 10th 2010
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