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The volume (V) of a cylinder varies jointly as its height (h) and the square of the radius (r) of its base. If the volume of a cylinder is 1,620 cm3 when the radius of the base is 9 cm and its height is 5 cm, what is the volume when the radius of the base is 6 cm and the height of the cylinder is 2 cm?

____

find constant variation?

k=?

what is the answer to the problem?

cm³ = ?​