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Mathematics 18 Online
OpenStudy (anonymous):

Find r. V = 256π cm3

OpenStudy (anonymous):

OpenStudy (anonymous):

that ones slightly harder lol

OpenStudy (anonymous):

what shape? cone? cylinder? sphere?

OpenStudy (anonymous):

look at it, you should be able to see what shape it is

OpenStudy (anonymous):

definately not a cone or cylinder

OpenStudy (anonymous):

Sorry, I ignored the attachment

OpenStudy (anonymous):

what shape would it be if the whole thing were shaded in ?

OpenStudy (anonymous):

bonbon I think

OpenStudy (anonymous):

:|

OpenStudy (anonymous):

here the hint:One-fourth of the hemisphere is missing.

OpenStudy (anonymous):

1/6pi r^3...

OpenStudy (anonymous):

nope 1/2

OpenStudy (anonymous):

3/4 of a hemisphere where a sphere would be 4/3pi*r^3

OpenStudy (anonymous):

but with the volume?

OpenStudy (anonymous):

= (3/4 x (1/2) x (4/3)pi r^3

OpenStudy (anonymous):

3/4 because its 3/4 of a hemisphere

OpenStudy (anonymous):

1/2 because a hemisphere is 1/2 a sphere

OpenStudy (anonymous):

V= (1/2) pi r^3 r^3 = (2V ) / pi r= cubed root [ (2V / pi ) ]

OpenStudy (anonymous):

r= cubed root ( 2 x 256) = 8cm

OpenStudy (anonymous):

i am so confuse

OpenStudy (anonymous):

:|

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