+0  
 
0
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avatar+39 

I've been kinda stuck on this problem, mind helping?

TheAwkwardCadet  Apr 19, 2018
 #1
avatar+87293 
+1

Volume of cone  = 

(1/3)pi *radius^2 * h  = 

(1/3)pi *(10)^2 * h =

(100/3) (3.14) * h =

(314/3) h

 

We can  find the height of the cone (and pyramid) as follows

 

1884  = (314/3)h    multiply both sides by (3/314)

 

1884 (3/314)  = h =  18 cm

 

 

Volume of pyramid   =  (1/3)side^2 * height  = (1/3)(20)^2 * 18  =  (400/3) * 18  =  

 

400 (18/3)  =   400 * 6   =   2400 cm^2

 

So....the difference in volumes  is   2400 - 1884  = 516 cm^2

 

 

cool cool cool

CPhill  Apr 19, 2018
 #2
avatar+39 
+2

Thank you!

TheAwkwardCadet  Apr 19, 2018
 #3
avatar+87293 
0

OK, man....no prob  !!!

 

If you are new....Welcome   !!!!

 

 

cool cool cool

CPhill  Apr 19, 2018

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