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Mathematics 7 Online
OpenStudy (narissa):

The exact volume of a cone that has a radius of 5 inches and a height of 18 inches

OpenStudy (dtan5457):

Volume for a cone for radius and height...get the calculator ready..

OpenStudy (narissa):

its 4,239 right?

OpenStudy (amorfide):

\[V=\frac{ 1 }{ 3} \pi (r^{2})h\] gives V=25(16)pi/3

OpenStudy (amorfide):

use your calculator, it is not 4239

OpenStudy (dtan5457):

Yeah, you plugged it in wrong @narissa

OpenStudy (narissa):

418.666 Im stuck and confused! please help me

OpenStudy (dtan5457):

Get the parenthesis.. (1/3)pi(5^2)(18) try again

OpenStudy (narissa):

isn't it 3*3.14*5*5*18

OpenStudy (dtan5457):

it's a 1/3 not a 3

OpenStudy (amorfide):

narissa you got it right with 418.666 if you use pi to be 3.14

OpenStudy (narissa):

but the answers are -150pi in to the third or 300pi in to the third 450 pi in to the third or 540 pi in to the third thats y Im stuck

OpenStudy (narissa):

OOOO im confused!!!

OpenStudy (narissa):

Can someone help me?

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