1:1  02-07[数学]李老师教你判断直角三角形斜边的范围
推荐理由：如何利用已知条件和现阶段所学的知识求出直角三角形斜边的范围，李老师教你妙招！ 讲解人：http://www.jiandan100.cn/teacher/42b645dd28c0464eabb07c33dec48243/ ，北京市数学高级教师 题面：已知，如图，△ABC中，∠A=90°，AB=5，AC=3，则BC长的取值范围是（ ） A. BC<3 B. BC<5 C. 3<BC<5 D. BC>5
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同学们要牢记“点到直线的距离，垂线段最短”！ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=376& 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=659008
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