How do you solve this? @Directrix
The answer leading to the forumla is within the question. Ask yourself, what do you need to find out? How do I find that out?
I know we are looking for the Volume of a Cylinder , but since we don't have the height we have to solve for h (stuck here) ; plug h in the equation , thus = Volume which = final answer!
My bad, I forgot about the height ^^;; I assume the height for both cylinders is the same? It does say "similar size", so what we can do is: Type 2 Vol / pr^2 = h That's the h.
I checked it and the answer matches one of yours :)
.. we dnt have the vol. :/
?
p = pi?
Yeah, sorry, typo there.
Or, we may use the similarity ratio : if sides are in ratio a/b, then volumes will be in ratio (a/b)^3
whats the ratio of sides of type1 and type2 ?
sides ...?.?
sides/radius/lengths - all these are same species.
let me change the question :) whats the ratio of radii of type1 and type2 ?
oh ! 4/7 = 0.57 :) If you're saying to cube that, 0.57143^3 = 0.18659 ~ aprox 0.19 @ganeshie8
perfect ! so volume of type1 cylinder = 0.19*(volume of type2 cylinder) = ?
= D. 229.81 :DD Thank you :))
good job !!
of course without rounding *
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