. Rahul, an engineering student, prepared a model shaped like a cylinder with two cones attached at its two ends. The diameter of the model is 3 cm and its total length is 12 cm. If each of the conical part has a height of 2 cm, find the total surface area of the model.
3 points
89 cm²
96 cm²
99 cm²
79 cm²
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96 cm 2 ........ .......... .. .. .... . . . . . .
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