《2018秋人教版九年级数学下册课件：27.2.3 相似三角形应用举例》由会员分享，可在线阅读，更多相关《2018秋人教版九年级数学下册课件：27.2.3 相似三角形应用举例（17页珍藏版）》请在金锄头文库上搜索。
27.2.3 ,1.: 2.(): 3.(): 4.(): 5.():,1?,2,ABCABC AB=10, AB=5, BC=12, BC=_,A,B,C,A,B,C,ABCABC,.紵,绯. ,4,272-8EF2mFD3 mOA201 mBO, BAO= EDF, AOB= DFE=90ABODEF,?,11.8360,:X,:36.,2.,1m,16m,0.5m, m,8,!,-,2 ,P,QS,PQSPSSPSaT,PTQPSbR.,QS=45mST=90m, QR=60m,PQ.,C,D,E,A,B,A,B,C,AB8MEBEDADE=2.8MCD=1.6M,2. 2.40MCD2.80M1.47M, 0.1M, ,F,D,C,E,B,A,1.0.5151.6 ,48,2.55015仹 ,22.5,3AB=8mCD=12mBD=5m1.6mC,K, , ,(1),F,B,C,D,H,G,l,A,K,(1),F,B,C,D,H,G,l,A,K,EFAC,C,E,ABLCDL ABCDAFH CFK,=,=,FH=8,8mCC,
