Posted by **Vivian** on Wednesday, October 26, 2011 at 7:33am.

Calculate the volume and curved surface area of a cone 14cm in base diameter and 24cm high

- Maths -
**Reiny**, Wednesday, October 26, 2011 at 8:40am
radius of base = 7 cm,

let the slant height be s

s^2 = 24^2 + 7^2

s = 25

V=(1/3)πr^2h = (1/3π)(49)(24) = 392π cm^3

SA = πrs = π(7)(24) = 392π cm^2

You didn't say if you want the circular base included, if so, add 49π cm^2

- Maths -
**Ilobi johnbosco**, Sunday, January 20, 2013 at 9:39am
Vol=1/3 pie r^2h

=1/3x22/7x7^2x24

=1232cm^3

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