Question

Plss solve this Q.........

Answer 1

Given that a cone, a hemisphere, and a cylinder have the equal base and same height.

That means r = h ---- (1).

Now,

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

We know that volume of the hemisphere = 2/3pir^3

                                                                      = 2/3pir^2 * r

                                                                      = 2/3pir^2h(From (1))


We know that Volume of the cylinder = pir^2h.


Now,

The ratio of their volumes = 1/3pir^2h : 2/3pir^2h : pir^2h

                                            = 1/3 : 2/3 : 1

                                            = 1 : 2 : 3.


Therefore the ratio of their volumes = 1:2:3.


Hope this helps!

Answer 2

Hi,

Please see the attached file!

Thanks