## TheHero 2 years ago 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

1. nincompoop

WHY MIGHT YOU THINK THAT YOU'RE WRONG?

2. TheHero

O-O....

3. TheHero

I think I'm wrong, because I'm not sure if I used the proper formula...?

4. nincompoop

THEN FIGURE OUT THE CORRECT FORMULA. THE INTERNET IS AVAILABLE FOR YOUT TO USE

5. AravindG

6. TheHero

I tried searching already but failed to find it;;

7. nincompoop

ARAVIND, THERE'S NO RULE AGAINST USING UPPER CAPS.

8. TheHero

@Nurali , can you help with this problem?

9. AravindG

Though it seems like you are shouting

10. AravindG

@TheHero given any figure volume is got by the product of base area and height .Remember!

11. AravindG

Base of a cylinder is a circle :Arepi *r*r

12. AravindG

*Area=pi*r*r

13. nincompoop
14. AravindG

height=h

15. AravindG

So volume=pi *r*r*h

16. TheHero

3.14*15*15= 707.14 Volumi: 3.14*15*15*10= 7071.428

17. luckythebest

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

18. TheHero

3.14*60*60*40=452571.428

19. TheHero

;~; I did get 1.06 previously, I wasn't sure if it was right though.

20. AravindG

why not ?

21. luckythebest

@AravindG somehow i think 1.06 is not right..radius itself is 4 times or something;

22. TheHero

D: Because, I just guessed the formula!

23. AravindG

If you get it by proper calculation .Why doubt it ?

24. AravindG

Oh ok ....Now I gave you the correct formula .Calculate again?

25. TheHero

I got 64.

26. luckythebest

Yes i think Y is 64 times of X's volume..i think its correcto

27. AravindG

you are right !

28. AravindG

\[\huge \color {red}{\checkmark}\]

29. TheHero

Thanks so much! :DD

30. AravindG

yw :)

31. luckythebest

yeah welcome