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      Question

      The shape of an toy is a right circular cylinder with a

      hemisphere on bottom and a right circular cone on the top. The radius of the cylindrical part is 8 cm and the height of the cylinder part is 2.125 times the radius. What is the total height of the toy, if the surface area of the toy is 1684 `4/7`   cm². 
      A 60cm Correct Answer Incorrect Answer
      B 40cm Correct Answer Incorrect Answer
      C 30cm Correct Answer Incorrect Answer
      D 28cm Correct Answer Incorrect Answer

      Solution

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