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What is the circumference of the circle above with center 0 ?

(1)The perimeter of $$\Delta OXZ$$ is $$20+10\sqrt 2$$

(2)The length of arc $$XYZ$$ is $$5\pi$$.
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
正确答案: D

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