Question

A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder? (Use 3.14 as an approximation of π.)

Answer 1

Volume of Cylinder.  5^2 x 3.14 = 78.5
                             78.5 x 16 (height of cylinder)  = 1256cm 

Volume of Cone : 1/3 πr^2 x h 
                           = (3.14 x 16 x 12) / 3
                            = 200.96