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Sunshine447
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The small pipe has a radius of 16 feet and a height of 48 feet while the large pipe has a height of 60 feet. What is the volume of the large pipe in terms of π?
http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0806_04/image0034e847d9e.gif
 one year ago
 one year ago
Sunshine447 Group Title
The small pipe has a radius of 16 feet and a height of 48 feet while the large pipe has a height of 60 feet. What is the volume of the large pipe in terms of π? http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0806_04/image0034e847d9e.gif
 one year ago
 one year ago

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Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
First of all you know that the formula for calculating the volume of a cylinder is: V=pi*r(square)*height
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
OK, you have the radius and height for the small pipe and the height for the large pipe but you don't have the radius you need in order to calculate the volume, understood till here now?
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Did you understand ?
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
u have to make a ratio, right?
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Yes like this: Height in the small pipe / Height in the large pipe = Radius in the small pipe / Radius in the large pipe
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Height in the small pipe = 48 cm Height in the large pipe= 60 cm Radius in the small pipe = 16 cm Radius in the large pipe= xcm Understood till here now?
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Now solve for x which will give you the radius of the large pipe
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
cross multiply?
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
okay, hold on
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
wait... its 20
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Look, 16/x = 48/60 16*60*48*x 960=48x x=960/48 x=20
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
so, then i multiply 20 by height?
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
@Faris_Waleed
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
@AccessDenied
 one year ago

Faris_Waleed Group TitleBest ResponseYou've already chosen the best response.0
Yes you use the cylinder formula to calculate its volume
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
i got 1200..... but that's not a choice...
 one year ago

Sunshine447 Group TitleBest ResponseYou've already chosen the best response.0
@CliffSedge
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
What is the radius of the large pipe?
 one year ago
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