试题与答案

Rectangle WXYZ is inscribed in a circle wi

题型:单项选择题

题目:

Rectangle WXYZ is inscribed in a circle with center O as shown above. If the diameter of the circle is equal to 16, then what is the area of the shaded region ?()

(1)WZ=OW

(2)XW<XY

A.条件(1)充分,但条件(2)不充分.

B.条件(2)充分,但条件(1)不充分.

C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.

D.条件(1)充分,条件(2)也充分.

E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

答案:

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参考答案:A, B

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