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Volume of a cone

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Volume of a cone

lgs98jonee

Hi
I knowthis is silly but what is the formula the volume of a cone and also for its surface area...thanks :P

Reply 1

hajira

heh.. 1/3 pi r^2 h for the volume
and pi r l (where l is the length of the slanting surface) for curved surface area

btw u r sitting the same exams as me.almost anyway
p5,p6 s1,2,3 m2,3 n physics edexcel A2
goodluck :biggrin:

Reply 2

SsEe

Volume = 1/3 pi r² h

SA = pi*r² + pi r L (L = slant height)
= pi*r² + pi r sqrt(h²+r²)

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