## anonymous one year ago The volume of a cone is 62.8 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? Use π = 3.14.

1. anonymous

@mathmath333

2. anonymous

@ganeshie8

3. anonymous

@Rushwr

4. Rushwr

$V= \Pi r ^{3}\frac{ h }{ 3 }$

5. Rushwr

This is the volume of the cone . We just have to substitute the numbers here !

6. anonymous

ok!

7. welshfella

Volume of a cone = (1/3) pi r^2 h where r = radius and h = height so plug in the given values 62.8 = (1/3) * 3.14 * r^2 * 15 solve for r

8. Rushwr

Since they have asked us the radius in inches no need to convert the height and the radius in to meters.

9. welshfella

@Rushwr - is that a typo ? r^2 not r^3

10. anonymous

ok i get it just trying to figure it out

11. Rushwr

oh pellet sorry

12. Rushwr

human error kid ! it is r^2

13. Rushwr

Sorry abwt tht! I actually thought I typd 2

14. welshfella

don't worry we all do it sometimes...

15. Rushwr

So at the end the answer would be 2 inches !

16. welshfella

yes

17. anonymous

alright i got the answer thanks a lot guysss

18. welshfella

yw

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