《《相似三角形的性质》课件2》由会员分享,可在线阅读,更多相关《《相似三角形的性质》课件2(17页珍藏版)》请在金锄头文库上搜索。
,1 2 ,1?,2, ,ABCABCkABCABCADADADAD,ABCABC BB ABDABD ABDABD,ABCABCkABCABCADADADAD,ABCABC BB,ABDABD,ABCABCkABCABCADADADAD,ABCABC BB, BACBAC,ABDABD,1,k,3DEBCAGBCGDE2BC6AF1AG_,237 A.73 B.499 C.949 D.37,1ABC ABC23 ,23,23,23,D,3,1,1,ABCABCk,ABCABC k,2,ABCABCk,ABCABCADAD,2, .,ABCABC6072AB15BC24BCACABAC, ABCABC,1ABC ABC 34 2 ABC ABC259 ,34,916,34,2,2.ABCD EABACDEBCDE4BC12,ADEBCED_.,1.6cm18cm42cm12cm2_cm _ cm2.,14,4,1:8,3.DEACAB, ABC100cm2BCDE.,: A=A,ADEABC,4., 100m280mAB20m12m.裬.,32m,16m2, .,