Math, asked by riteshraj7876, 1 year ago

Anyone can do this maths

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Answered by siddhartharao77
1
Given that height of cone h = 21cm.

Given that slant height of cone l = 28cm.

We know that l^2 = h^2 + r^2

                        28^2 = 21^2 + r^2

                       784 = 441 + r^2

                       343 = r^2

                      r = 18.52cm.


We know that volume of the cone = 1/3pir^2h

                                                          = 1/3 * 22/7 * (18.52)^2 * 21

                                                           = 7545.7

                                                           = 7546cm^3.



Hope this helps!
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