A cylindrical vessel of height $24\; cm$ and $15\; cm$ as radius of the base is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. The height of the conical heap is $24\;cm$ , the radius of the base is _______ cm (approx)

Question

$(A) \; 24\;cm \\(B)\;22\;cm \\(C)\;23\;cm \\(D)\;26\;cm$