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# If a rectangular block that is 4 inches by 4 inches by 10

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Manager
Joined: 10 Jan 2006
Posts: 114

Kudos [?]: 7 [0], given: 0

If a rectangular block that is 4 inches by 4 inches by 10 [#permalink]

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01 Apr 2006, 23:05
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If a rectangular block that is 4 inches by 4 inches by 10 inches is placed inside a right circular cylinder of radius 3 inches and height 10 inches,the volume of the unoccupied portion of the cylinder is how many cubic inches?

a)6pi-16
b)9pi-16
c)160-30pi
d)60pi-160
e)90pi-160

Kudos [?]: 7 [0], given: 0

Director
Joined: 06 Feb 2006
Posts: 893

Kudos [?]: 123 [0], given: 0

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02 Apr 2006, 00:35

Volume of rectangular block = 160..... (4*4*10)

Volume of the cylinder = 90 pi....... (9pi*10)

The unoccupied are = Volume of the cylinder - volume of rectangular block = 90pi-160

Kudos [?]: 123 [0], given: 0

VP
Joined: 29 Apr 2003
Posts: 1403

Kudos [?]: 30 [0], given: 0

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02 Apr 2006, 01:57
E

Volume of the Cylinder - Rec Block

pi(R^2)H - lbh

Kudos [?]: 30 [0], given: 0

02 Apr 2006, 01:57
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