如图,在等腰△ABC中,AB=AC=2
,BC=8,按下列步骤作图:
①以点A为圆心,适当的长度为半径作弧,分别交AB,AC于点E,F,再分别以点E,F为圆心,大于
EF的长为半径作弧相交于点H,作射线AH;
②分别以点A,B为圆心,大于
AB的长为半径作弧相交于点M,N,作直线MN,交射线AH于点O;
③以点O为圆心,线段OA长为半径作圆.
则⊙O的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
①以点A为圆心,适当的长度为半径作弧,分别交AB,AC于点E,F,再分别以点E,F为圆心,大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
②分别以点A,B为圆心,大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
③以点O为圆心,线段OA长为半径作圆.
则⊙O的半径为( )
A.2![]() | B.10 | C.4 | D.5 |
2020·浙江舟山·中考真题 查看更多[16]
浙江省舟山市2020年中考数学试题浙江省嘉兴市2020年中考数学试题河南省洛阳市涧西区洛阳市东升第二中学2020-2021学年九年级上学期10月月考数学试题(已下线)专题13.2 圆(2)-备战2021年中考数学精选考点专项突破题集(全国通用)(已下线)考点17 圆-备战2021年中考数学考点(已下线)考点18 尺规作图与定义、命题、定理-备战2021年中考数学考点 核心考点清单(已下线)热点08 圆-2021年中考数学【热点·重点·难点】专练2021年河南省名校中考数学二模试题(已下线)必刷卷03-2021年中考数学考前信息必刷卷(四川成都专用)浙江省杭州市江干区杭州采荷实验学校2021-2022学年九年级上学期12月月考数学试题山东省济宁市曲阜市2020-2021学年九年级上学期期末数学试题(已下线)专题10 三角形-三年(2020-2022)中考数学真题分项汇编(浙江专用)(已下线)专题13 圆基础题型汇总-三年(2020-2022)中考数学真题分项汇编(浙江专用)(已下线)九年级数学开学摸底考(广西专用)-2023-2024学年初中下学期开学摸底考试卷(已下线)2024年广东省深圳市福田外国语教育集团中考二调数学试题2024年山东省临沂市蒙阴县中考三模数学试题
更新时间:2020-07-03 07:47:14
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