1、在ΔABC中,∠ACB=90度,AC=BC,直线MN经过点C,且AD垂直与MN于点D,BE垂直MN于点E.在ΔABC中,∠ACB=90度,AC=BC,直线MN经过点C,且AD垂直与MN于点D,BE垂直MN于点E.(1)当直线MN绕点C旋转到图①时,DE=AD+BE 吗?说
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/16 23:36:20
![1、在ΔABC中,∠ACB=90度,AC=BC,直线MN经过点C,且AD垂直与MN于点D,BE垂直MN于点E.在ΔABC中,∠ACB=90度,AC=BC,直线MN经过点C,且AD垂直与MN于点D,BE垂直MN于点E.(1)当直线MN绕点C旋转到图①时,DE=AD+BE 吗?说](/uploads/image/z/1932084-36-4.jpg?t=1%E3%80%81%E5%9C%A8%CE%94ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%E5%BA%A6%2CAC%3DBC%2C%E7%9B%B4%E7%BA%BFMN%E7%BB%8F%E8%BF%87%E7%82%B9C%2C%E4%B8%94AD%E5%9E%82%E7%9B%B4%E4%B8%8EMN%E4%BA%8E%E7%82%B9D%2CBE%E5%9E%82%E7%9B%B4MN%E4%BA%8E%E7%82%B9E.%E5%9C%A8%CE%94ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%E5%BA%A6%2CAC%3DBC%2C%E7%9B%B4%E7%BA%BFMN%E7%BB%8F%E8%BF%87%E7%82%B9C%2C%E4%B8%94AD%E5%9E%82%E7%9B%B4%E4%B8%8EMN%E4%BA%8E%E7%82%B9D%2CBE%E5%9E%82%E7%9B%B4MN%E4%BA%8E%E7%82%B9E.%EF%BC%881%EF%BC%89%E5%BD%93%E7%9B%B4%E7%BA%BFMN%E7%BB%95%E7%82%B9C%E6%97%8B%E8%BD%AC%E5%88%B0%E5%9B%BE%E2%91%A0%E6%97%B6%2CDE%3DAD%2BBE+%E5%90%97%3F%E8%AF%B4)
xUnG~H,l`q ˥
.ipUW8m`M۵0`A.WyODUh3ΙؿS+ j+> Bĭ3&(1Fvah
{њA ~.]XZYKơ%dKev8}`P (Bjݯ