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by **king&i** on Sat May 16, 2009 11:47 pm

hte lateral area of a cone is 32pie in squared.if the radius is 12in find the slant heigth.

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by **stapel_eliz** on Sun May 17, 2009 11:43 am

king&i wrote:hte lateral area of a cone is 32pie in squared.if the radius is 12in find the slant heigth.

The formula for the lateral area (that is, the surface area of the sides, but not of the bottom) A of a cone with radius r and slant-height s is given by:

. . . . . $A\, =\, \pi rs$

So plug $32\pi$ in for A and 12 in for r. Solve for the value of s. :wink:

If you get stuck, please reply showing all of your steps so far. Thank you!

by **king&i** on Fri May 22, 2009 7:30 pm

32pie=pie12s
2.66=s
??

by **stapel_eliz** on Fri May 22, 2009 10:33 pm

I'm not sure what your question is...? But I'm pretty sure a truncated-decimal answer won't be counted as completely correct. Use the fractional form, instead:

. . . . . $s\, =\, \frac{32\pi}{12\pi}\, =\, \frac{32}{12}\, =\, \frac{8}{3}$

:wink:

by **king&i** on Sat May 30, 2009 9:42 pm

i figured it out thx

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lateral area of a cone is 32pie in squared.if the radius is

lateral area of a cone is 32pie in squared.if the radius is

Re: lateral area of a cone is 32pie in squared.if the radius is

Re: lateral area of a cone is 32pie in squared.if the radius is