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时间:2020-11-23
《2020-2021学年北京市丰台区初二第上学期期中数学试卷.pdf》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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2、q*4=?5@A,ST5、PU5V2BWXP?,YZ.5V[]^_]XP?。n¸Pns+59.`a,b-./、?5@(cde。,、-./(0/'301,23/31)(A)(B)'1-105fghiSj,kl5mnSjog(i獉獉1.pqnhiUK8rs“teuv”、“gwxy”、“z{xy”>“YZxy”n
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10、PFG,n*.P=«õBCA~2cm/snö&÷BÈCÊ(1)¶VÝ>)(,*U(+,PU-^);Ë,Q=«õACA~xcm/snö&÷CÈAÊË.(2)./pqnÿ½.¯:øù,®Í=ú(:û△BPD△CPQ,ÿ½:∵AC=,BC=,x=.∴AB⊥l()(D01n23).!"#$%3&('6&)!"#$%4&('6&)25.®U,△ABCs2,BD⊥ACD,AE∥CB,∠AEB=90°.27.q
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