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31

A 120º sector of a circle of radius 21 cm is bent to form a cone. What is the base radius of the cone?

  • A. 3\(\frac{1}{2}\) cm
  • B. 10\(\frac{1}{2}\) cm
  • C. 14 cm
  • D. 7 cm
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32

A cylindrical container, closed at both ends, has a radius of 7 cm and a height of 5 cm. Use this information to answer the questions below. What is the volume of the container?

  • A. 770 cm\(^3\)
  • B. 35 cm\(^3\)
  • C. 220 cm\(^3\)
  • D. 154 cm\(^3\)
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