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  3. The areas of the two shaded regions of the circle are equal. Column A Column B T

The areas of the two shaded regions of the circle are equal. Column A Column B T

admin2009-05-19  17
问题
The areas of the two shaded regions of the circle are equal.

Column A                                                Column B
The area of unshaded region A of the circle             The area of unshaded region B of the circle
选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案D
解析 本题的正确答案是(D)。若图中两条直线的交点在圆心上，则可推出A和B两区域的面积相等；但图中并未说明，所以两条直线完全可能不在圆心相交也可以导致两阴影面积相同，而在这种情况之下A和B两区域的面积孰大孰小是不能确定的。
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