Question

I need help on this problem

Answer 1

This question is based upon the (incorrect) idea that all 3 of these bottles are uniformly-shaped cylinders.  But I'd suggest you accept that convention.

The volume of a right circular cylinder is V = (base)(height), where the (base) is the base area:  A=pi * r^2, where pi is taken to be 3.14.

Last case:  the radius is 6 cm and the height is 32 cm.  The area of the base is then 3.14 * 6^2 cm^2 (simplify this), and the height is 32 cm.  Multiply these together to obtain the volume of the bottle.  Be certain to include the unit of measurement, cm^3.