在矩形ABCD中,AB=a,BC=b,M是BC的中点,DE⊥AM,垂足为E.(1)如图1,求DE的长,用a,b表示.(2)如图2,若垂足E落在点M或AM的延长线上,结论是否与(1)相同.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 05:08:04
![在矩形ABCD中,AB=a,BC=b,M是BC的中点,DE⊥AM,垂足为E.(1)如图1,求DE的长,用a,b表示.(2)如图2,若垂足E落在点M或AM的延长线上,结论是否与(1)相同.](/uploads/image/z/9863939-11-9.jpg?t=%E5%9C%A8%E7%9F%A9%E5%BD%A2ABCD%E4%B8%AD%2CAB%EF%BC%9Da%2CBC%3Db%2CM%E6%98%AFBC%E7%9A%84%E4%B8%AD%E7%82%B9%2CDE%E2%8A%A5AM%2C%E5%9E%82%E8%B6%B3%E4%B8%BAE.%EF%BC%881%EF%BC%89%E5%A6%82%E5%9B%BE1%2C%E6%B1%82DE%E7%9A%84%E9%95%BF%2C%E7%94%A8a%2Cb%E8%A1%A8%E7%A4%BA.%EF%BC%882%EF%BC%89%E5%A6%82%E5%9B%BE2%2C%E8%8B%A5%E5%9E%82%E8%B6%B3E%E8%90%BD%E5%9C%A8%E7%82%B9M%E6%88%96AM%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2C%E7%BB%93%E8%AE%BA%E6%98%AF%E5%90%A6%E4%B8%8E%EF%BC%881%EF%BC%89%E7%9B%B8%E5%90%8C.)
xݔn@@
jǞ42߀3$Bb(A$ [
@RIҤ(*$AP y;̈́vs<#߀/dQ/$다5~loQWJOִ >h{'1,tF
|h'zw;ۘ<_)MZC[o:7>>It1㧓=FǿK:qQ:#`^6K&nx mq]S+іMUit%+F=J;i^5U*.2VGȌZVQˡgSs%0J\079CX\pg( S,RIn;}#(r)Bg,š[B&T>aiMKh]3gk5O.ϗA2H8u1t@+6,gJ&