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北师大版九年级下册中,学习了圆的性质的两个推论:1.在同圆或等圆中如果两个圆心角、两条弧、两条弦或两条弦的弦心距中有一组相等,那么它们所对的其余
In the second grade of the Beijing Normal University’s edition of the ninth grade, we learned two inferences about the nature of the circle: 1. If there are two central angles, two arcs, two strings, or two string chord centers in a circle or equal circle. There is a group of equals, then the rest of them are right