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Some young entrepreneurs started an indu...

Some young entrepreneurs started an industry "young achievers" for casting metal into various shapes . They put up and advertisement online stating the same and expecting order to cast metal for toys, sculptures , decorative pieces and more .
A group of friends wanted to make innovative toys and hence contacted the "young achievers" to order them to cast metal into solid half cylinders with a rectangular based semi-circular ends

Based on the above informtion , answer the following questions:
The volume (V) of the casted half cylinder will be :

A

`pir^(2)h`

B

`(1)/(3)pi r^(2)h`

C

`(1)/(2)pi r^(2)h`

D

`pr^(2)(r+h)`

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