Which of the following lists the number of points at which a circle can intersect a triangle?
2 and 6 only
2, 4, and 6 only
1, 2, 3, and 6 only
1, 2, 3, 4, and 6 only
1, 2, 3, 4, 5, and 6
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可以有1个(1个切点),2个(俩切点),3个(3点都相切或1切2交点),4个(俩切点,俩交点),5个(1切点4交点),6个(6交点)
可以有1个(1个切点),2个(俩切点),3个(3点都相切或1切2交点),4个(俩切点,俩交点),5个(1切点4交点),6个(6交点)
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