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Sunshine447
 3 years ago
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
Sunshine447
 3 years ago
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

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

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0OK, 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?

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Did you understand ?

Sunshine447
 3 years ago
Best ResponseYou've already chosen the best response.0u have to make a ratio, right?

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Yes like this: Height in the small pipe / Height in the large pipe = Radius in the small pipe / Radius in the large pipe

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Height 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?

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Now solve for x which will give you the radius of the large pipe

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Look, 16/x = 48/60 16*60*48*x 960=48x x=960/48 x=20

Sunshine447
 3 years ago
Best ResponseYou've already chosen the best response.0so, then i multiply 20 by height?

Faris_Waleed
 3 years ago
Best ResponseYou've already chosen the best response.0Yes you use the cylinder formula to calculate its volume

Sunshine447
 3 years ago
Best ResponseYou've already chosen the best response.0i got 1200..... but that's not a choice...

CliffSedge
 3 years ago
Best ResponseYou've already chosen the best response.0What is the radius of the large pipe?
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