GMAT 考满分题库

- 数学PS -
A circle with a radius of 12 inches is cut out of a sector with a central angle of 120 degrees. Use the remaining sectors to make a cone. What is the altitude of the cone?
  • A6
  • B8
  • C4 $$\sqrt{2}$$
  • D4 $$\sqrt{5}$$
  • E10
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正确答案: D

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