The diagram shows the first three cylinders of a series of cylinders. The height of the cylinders increase by 1cm successively. Cylinder 1= Width:j cm
Height:t cm
Cylinder 2=Width:j cm
Height:(t+1cm)
Cylinder 3=Width:j cm
Height:(t+2cm)

a)Show that the volumes of the cylinders form an arithmetic progression. State it's common difference
b)Given that the volume of the forth cylinder is 32πcm³ and the sum of volumes of the first four cylinders is 104πcm³,find the height and the radius of the smallest cylinder.

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