TheHero
Am I right?
A cylinder labeled X has a height of 10 inches and a radius of 15 inches. Another cylinder labeled Y has a height of 40 inches and a radius of 60 inches.
The volume of cylinder Y is _______ times the volume of cylinder X.
The answer is 1.06
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nincompoop
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WHY MIGHT YOU THINK THAT YOU'RE WRONG?
TheHero
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O-O....
TheHero
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I think I'm wrong, because I'm not sure if I used the proper formula...?
nincompoop
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THEN FIGURE OUT THE CORRECT FORMULA. THE INTERNET IS AVAILABLE FOR YOUT TO USE
AravindG
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@nincompoop caps off please
TheHero
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I tried searching already but failed to find it;;
nincompoop
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ARAVIND, THERE'S NO RULE AGAINST USING UPPER CAPS.
TheHero
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@Nurali , can you help with this problem?
AravindG
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Though it seems like you are shouting
AravindG
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@TheHero given any figure volume is got by the product of base area and height .Remember!
AravindG
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Base of a cylinder is a circle :Arepi *r*r
AravindG
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*Area=pi*r*r
AravindG
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height=h
AravindG
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So volume=pi *r*r*h
TheHero
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3.14*15*15= 707.14
Volumi: 3.14*15*15*10= 7071.428
luckythebest
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Just divide the volume of Y by the volume of X.
Pi x 60 x 60 x 40 / Pi x 15 x 15 x 10.
If the final answer is 1.06 then ur correct.
Y : X = 1.06 : 1
Which, by law of proportions means Y = 1.06 X; try it out
TheHero
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3.14*60*60*40=452571.428
TheHero
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;~; I did get 1.06 previously, I wasn't sure if it was right though.
AravindG
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why not ?
luckythebest
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@AravindG somehow i think 1.06 is not right..radius itself is 4 times or something;
TheHero
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D: Because, I just guessed the formula!
AravindG
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If you get it by proper calculation .Why doubt it ?
AravindG
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Oh ok ....Now I gave you the correct formula .Calculate again?
TheHero
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I got 64.
luckythebest
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Yes i think Y is 64 times of X's volume..i think its correcto
AravindG
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you are right !
AravindG
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\[\huge \color {red}{\checkmark}\]
TheHero
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Thanks so much! :DD
AravindG
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yw :)
luckythebest
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yeah welcome