等腰三角形的五个模型-精品.pdf

111140__________270__________33014__________4,24,:2ABCABCACBO,OEFBC,ABE,ACF,AB=9,AC=8.(1)(2)AEF+3BOCBACOACBMNBCO12AB14ACAMN42ABCABACACPPEFBCBAEFAEAP53ABCBACBCAOODEACABBCDEADCEDE64ABCADBACEFBDADDECDEFACEFAB+15ADBACADDCAECCABEDO34BFCDEA2FBACPEE5ABCD226RABCABACBAC90BFABCCDBDBFDBF2CD217ABC2CBDABCDBC28ABCACB2BBC2ACA90ABCADBACAB=AC+CDBC+124ABCDBCBAADDCBDABC180AC6BFDCACB7DA8CBAABCDABCD4