Two sheet sheets each of length a1 and...

Two sheet sheets each of length `a_1` and breadth `a_2` are used to prepare the surfaces of two right circular cylinders - one having volume `v_1` and height `a_2` and other having volume `v_2` and height `a_1dot` Then, (a) `v_1=v_2` (b) `a_1v_1=a_2v_2` (c) `a_2v_1=a_1v_2` (d) `(v_1)/(a_1)=(v_2)/(a_2)`

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