a hollow garden roller of 42 cm diameter and length 152 cm is made of cast iron 2cm thick.find the volume of iron used in the roller
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you can also get answer by taking value of π=22/7.
your answer with π=22/7 will be 38217.14cm^2.
your answer with π=22/7 will be 38217.14cm^2.
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shrutikantpatra:
answer is wrong
aswer is 42038.86cm^2
check it again
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