如图,D为Rt△ABC的斜边BC的中点,M,N分别在AB,AC边上,且∠MDN=90°,求证:BM²+CN²=MN².
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/14 15:43:55
![如图,D为Rt△ABC的斜边BC的中点,M,N分别在AB,AC边上,且∠MDN=90°,求证:BM²+CN²=MN².](/uploads/image/z/1739748-12-8.jpg?t=%E5%A6%82%E5%9B%BE%2CD%E4%B8%BARt%E2%96%B3ABC%E7%9A%84%E6%96%9C%E8%BE%B9BC%E7%9A%84%E4%B8%AD%E7%82%B9%2CM%2CN%E5%88%86%E5%88%AB%E5%9C%A8AB%2CAC%E8%BE%B9%E4%B8%8A%2C%E4%B8%94%E2%88%A0MDN%3D90%C2%B0%2C%E6%B1%82%E8%AF%81%3ABM%26sup2%3B%2BCN%26sup2%3B%3DMN%26sup2%3B.)
xS]OV+RwFtI%Ⱦl'4֒5Tv$U(P#@uBBv{ATMUo֛I~}sL4z_-;ek\u=4v2W;i1, țj46GzSr*u^{Ei.}#%F$>?өR,~~
U|r{4|1*ӈ61(;1.>N)q*<)lDLNsqa8&(Mǩs69.2iltzmmPڅ (MZE>_|tj:`U`¿N_Li~49ڍ5(Q"ueMc4*28%L^T'.²iLDva]q]LIC:T'h$$],(oWv!YmRl]7<