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Question

If volume of a cone is V, height h, slant height 1 and radius of the base r, then
  1. V=13πr2h
  2. V=12πr2l
  3. V=13πl2h
  4. V=13πh2r

A
V=13πl2h
B
V=13πh2r
C
V=12πr2l
D
V=13πr2h
Solution
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