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 A cone-shaped paper cup is 7 cm high with a diameter of 6 cm. If the ivy plant on Julia's desk needs 240 mL of water, about how many paper c

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A cone-shaped paper cup is 7 cm high with a diameter of 6 cm. If the ivy plant on Julia's desk needs 240 mL of water, about how many paper cups of water will use to water it?(1mL=1cm³)

 Sep 30, 2014

Best Answer 

 #1
avatar+129838 
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The volume of a cone is given by

Vc =  (1/3) * pi * r2 * h          so...if the diameter  is 6, the radius = 3   and we have

Vc = (1/3) * pi * 32 * 7 =  65.98cm3

And  240cm3 / 65.98 cm3 =  about 3.6 cups  !!!!

 

   

 Sep 30, 2014

1+0 Answers

 #1
avatar+129838 
+8
Best Answer

The volume of a cone is given by

Vc =  (1/3) * pi * r2 * h          so...if the diameter  is 6, the radius = 3   and we have

Vc = (1/3) * pi * 32 * 7 =  65.98cm3

And  240cm3 / 65.98 cm3 =  about 3.6 cups  !!!!

 

   

CPhill Sep 30, 2014

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