搜索
13(1)ABC(2)Aa(1)(2)(3)(1)(2)123180on(n2)180o360(n2)180o360o150cm35cm()(A)0.85m(B)0.15m(C)1m(D)0.5m38A75B7C9D791cm2cm3cm4cm5cm_____ABCabcabc,a+b+c=13abc____111ABCBC_______ACDCD______BCEBC______CF__________2AB=5BC=2CF=AD=________2ABCAB=ACPBCPDABDPEACECMABMPDPECM21DACAD=DCEBCBE=ECADEBDCBBDABCCDACEBCDCDE31ABCDEFBC1=2=3=4AEAABEBADFCABCDABCADF41A1234B123C13D1341A=95B=45A40B45C50D552ABCADAEABC(1)B30C50DAE(2)DAECB?3(1),1=40,2=45,C=50,B=____(2),A=40,B=45,C=50,D=____3,A=40,B=45,C=50,O=____4(1),______;(2),_____;______;_____;5BA57CA15CB82C1n1800n=2R3P1212108PA30B40C80D108