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Maths Puzzle
if the radii of the circular ends of a conical bucket,which is 4cm high are 28cm and 7cm find the capacity of the bucket and also the total surface area of the bucket
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- s=sqrt((R_1-R_2)^2+h^2).
(1)
The surface area, not including the top and bottom circles, is
A = pi(R1+R2)s
= pi(R1+R2)sqrt((R1-R2)^2+h^2).
=3013.268 cm2
volume=pi*h/3*(R^2+r^2+rR)=4310.26 - 11 years agoHelpfull: Yes(0) No(0)
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