Let r be a radius and h be a height of a cylinder Since the cylinders are similar, then the ratio between their radiuses is equal to the ratio of their heights: r1 : r2 = h1 : h2
In order to find b1 from your formula stated we need to do few calculations A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2) I will subtract hb2 from both sides hb1=A-hb2 now I will divide my new expression by h b1=(A-hb2)/h
