Math Help Again?

Question

The volume of a cylinder is 90 cubic meters. What is the volume of a cone with the same radius and the same height as the cylinder? 

30 cubic meters 

45 cubic meters 

180 cubic meters 

270 cubic meters

Answer 1

The volume of a cylinder is ( V ) = π r²h

But the volume of a cylinder is given as 90 cubic meters

                                 π r²h = 90                              

The volume of a cone is ( V ) = (1/3)π r²h

                                        = 1/3 (90)

                                         = 30 cubic meters

The volume of a cone is 30 cubic meters.

Option 1 is correct.