1:1  01-18[数学]李老师带你发现问题本质，轻松解题 推荐理由：用简单的知识解决复杂图形中的问题，李老师借你“慧眼”，巧寻阴影部分的面积！ 讲解人：http://www.jiandan100.cn/teacher/fae98fe4b5174cffa7590eb901b0e3c0/ ， 北京一零一中学数学教师，多次参加中考阅卷。 题面：如图,A是半径为2的⊙O外一点,OA=4,AB是⊙O的切线,点B是切点,弦BC∥OA,连结AC,则图中阴影部分的面积为_________.  【答案及详解】 本部分内容设定了隐藏,需要回复后才能看到  跟帖分享你的答案，即可看到正确答案和解析！别忘了回帖后再点进来查看答案哦~
等面积转化，你学会了吗？ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ [每周一星] http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=658540& 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=380& 浏览本期“简单学习电子周报”完整目录：http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=658520 |
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沙发#
发布于：2014-06-06 23:39
wmkb
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板凳#
发布于：2014-06-04 13:11
捷径
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地板#
发布于：2014-01-27 14:59
............
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4楼#
发布于：2013-05-19 22:14
????????????????????????????
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5楼#
发布于：2013-05-19 16:35
求答案答案答案答案！
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6楼#
发布于：2013-05-03 10:48
等面积转化巧寻阴影部分的面积！
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7楼#
发布于：2013-04-05 15:44
3分之2π+2根号3
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8楼#
发布于：2013-04-04 23:33
呜呜~~~~(>_<)~~~~
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