Question

what are all the formulae used in volume and surface area of solids class 9? please tell
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Answer 1

Step-by-step explanation:

Lateral Surface Area: 2πRH. Volume: πR2H [where R= Radius, H= Height].

Answer 2

Step-by-step explanation:

volume=(r^2h)cubic units

surface area=2(rh)sq.

total surface area=2r(h+r)sq.units