A wooden doll in the figure consists of a cylinder and a hemisphere at each end with a common base. It is given that the volume of the doll is 117π cm³ and the height of the whole doll is 5 times the base radius of the cylinder. (a) Find the base radius of the cylinder.(b) Find the total surface area of the doll in terms of π.
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sorry l dony know the answer please give brainleast
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