anonymous
  • anonymous
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
First of all you know that the formula for calculating the volume of a cylinder is: V=pi*r(square)*height
anonymous
  • anonymous
yeah
anonymous
  • anonymous
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?

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anonymous
  • anonymous
Did you understand ?
anonymous
  • anonymous
u have to make a ratio, right?
anonymous
  • anonymous
Yes like this: Height in the small pipe / Height in the large pipe = Radius in the small pipe / Radius in the large pipe
anonymous
  • anonymous
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?
anonymous
  • anonymous
Now solve for x which will give you the radius of the large pipe
anonymous
  • anonymous
cross multiply?
anonymous
  • anonymous
yes
anonymous
  • anonymous
okay, hold on
anonymous
  • anonymous
12.8?
anonymous
  • anonymous
wait... its 20
anonymous
  • anonymous
Look, 16/x = 48/60 16*60*48*x 960=48x x=960/48 x=20
anonymous
  • anonymous
so, then i multiply 20 by height?
anonymous
  • anonymous
@Faris_Waleed
anonymous
  • anonymous
@AccessDenied
anonymous
  • anonymous
Yes you use the cylinder formula to calculate its volume
anonymous
  • anonymous
i got 1200..... but that's not a choice...
anonymous
  • anonymous
@CliffSedge
anonymous
  • anonymous
What is the radius of the large pipe?

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