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[img]ct_gre5image036[/img]Column A Column BThe length o
[img]ct_gre5image036[/img]Column A Column BThe length o
游客
2024-01-12
30
管理
问题
Column A Column B
The length of arc ABC The length of arc ADC
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
本题的正确答案为(D)。由BC=AD=x,只能推出它们的对应弧长BC,AD相等,但是AB弧与CD弧的长度却不能确定,因此本题的为无法判断。只有当BC∥AD时才能得到ABC弧的长度与BCD弧的长度相等。(BC=AD保证了与圆心等距)。
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