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ǰλãҳ > 北师大版七年级数学下?第五单元 质量评估试卷(附答? - 百度文库

北师大版七年级数学下?第五单元 质量评估试卷(附答? - 百度文库

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  • 2025/7/12 8:49:14

A1A2DڱA2DȡһEӳA1A2A3ʹA2A3A2Eõ3A2A3EȥnAnΪڽǵĶ__ __

16ͼ֪AOB30㣬PΪAOBһ㣬OP 10 cmֱPOAOBĶԳƵP1P2P1P2ֱOAڵMOBڵNPMNܳΪ__ __.

(66)

17(8)ͼΪԳửͼһ룮

18(10)ͼڡABCУABBCADƽ֡BACB40㣬CCEABڵEADڵO.

(1)ACBĶ

(2)EEFADBCڵFCEFĶ

19(10)ͼڡABCУADΪBACƽߣFEֱƽADADEBCӳFôBCAFΪʲô

20(11)֪ͼBDǡABCƽߣABBCPBDϣPMADPNCDֱMN.˵PMPN.

21(12)ڸϰϣʦһ˼⣺ͼʾMNֱڵȱߡABCBCCAϣBMCNAMBNڵQ֤BQM60.

(1)˼⣻

(2)(1)ͬѧʦ½˷˼⣬Ʃ磺

СBMCN롰BQM60㡱λýõǷ⣿

еĵMNֱƶBCCAӳϣǷ

ܵõBQM60㣿ѡһⲢͼΣ֤

22(15)ͼڡABCУABAC

(1)ͼ1Ϧ35㣬ADBCϵĸߣADAEϦ£__ __

(2)ͼ2Ϧ46㣬ADBCϵĸߣADAEϦ£__ _

(3)ͼ3DΪBCһ㣮˼ڡABCУABACADAEϦ͡Ϧ֮ʲôϵд˵ɣ

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A1A2DڱA2DȡһEӳA1A2A3ʹA2A3A2Eõ3A2A3EȥnAnΪڽǵĶ__ __ 16ͼ֪AOB30㣬PΪAOBһ㣬OP 10 cmֱPOAOBĶԳƵP1P2P1P2ֱOAڵMOBڵNPMNܳΪ__ __. (66) 17(8)ͼΪԳửͼһ룮 18(10)ͼڡABCУABBCADƽ֡BACB40㣬CCEABڵEADڵO.

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