如图,在Rt△ABC中,∠C=90°,AC=9,BC=4,,以点C为圆心3为半径作⊙C分别交AC,BC于D,点P是⊙C上一个动点,则
PA+PB的最小值为 _____ .
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21-22九年级上·黑龙江大庆·期末 查看更多[11]
黑龙江省大庆市龙凤区2021-2022学年九年级上学期期末数学试题1黑龙江省大庆市龙凤区2021-2022学年九年级上学期期末数学试题2(已下线)专题20 和阿波罗尼氏圆有关的最值问题-【微专题】2022-2023学年九年级数学上册常考点微专题提分精练(浙教版)(已下线)专题18 阿氏圆小题-【微专题】2022-2023学年九年级数学下册常考点微专题提分精练(人教版)(已下线)专题18 阿氏圆小题-【微专题】2022-2023学年九年级数学下册常考点微专题提分精练(苏科版)(已下线)专题27 相似三角形压轴题的几种类型-2023年中考数学二轮复习核心考点专题提优拓展训练江苏省苏州市姑苏区平江中学校2023-2024学年九年级上学期12月月考数学试题(已下线)猜想04与圆相关的几何综合(6种模型)-2023-2024学年九年级数学上学期期末考点大串讲(人教版)广东省东莞市虎门外语学校2023-2024学年九年级上学期期末数学试题(已下线)培优冲刺04 几何最值问题综合(4题型)-【查漏补缺】2024年中考数学复习冲刺过关(全国通用)(已下线)数学-2024年中考考前最后一课(4)
更新时间:2022-02-26 13:30:56
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【推荐1】如图,矩形ABCD中,AB=1,BC=2,点E为边BC的中点,以点A为圆心的弧经过点C,分别与AD、AE的延长线交于点F、G,则弧FG的长是_______ .(结果保留π)
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【推荐2】如图,在
中,
,以
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的中点,连接
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的长为______ .
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【推荐1】顶点在圆外,并且两边都和圆相交的角叫做圆外角.圆外角的两边所夹的两条弧的度数与该角的度数之间的数量关系是:圆外角的度数等于__________ .
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【推荐2】如图,圆内4个正方形的边长均为2a,若点A,B,C,D,E在同一条直线上,点E,F,G在同一个圆上,则此圆的半径为______ .
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【推荐1】如图,点E是
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【推荐2】在平行四边形
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