《专题18 投影与视图、命题与证明、尺规作图-三年(2020-2022)中考数学真题分项汇编(全国通用)(解析版)》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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51.Z1=Z3,N2=N3,/.0D/7BA,.,.ZODE+ZBED=180°,DEYBANODE=90°,.♦.EDḄᑗ+0
52+/,ᑖ8!A3ஹ8C9MஹNঝ$NABCḄ¦ᑖ+"Bᙊ45ᙊ'NABCḄ¶ᩩxᑖ8ᨵ¡!"$V¶¡!"ᙊ)¸5M*^V¶ᩩḄ!"'"8,ᓽWCḄ¦ᑖ+Vᩩ¦ᑖ+'+ÐMNḄ!"ᓽঞᙊONᙊᙊᓽᡠ×(2)"£_LA8,ᚖÕEÏON=OE=r54VBM=-,BC=2,:.BN=\,:.MN=—33᪷C☢Ý\.$4BMN=S&RNQ+SgMOᦑgᫀr=.ூ"⚪ὃOQᑗ+Ḅឋàwᑁák⚪ḄᐵÄÅ+Ðᚖ¦ᑖ+ஹ¦ᑖ+ḄOQ.60.(2019•ÆÇâã)ᙠRfAAfiCSZC=90°.(1)জ"OᙠäxA3D"ᙊ85Ḅᙊ!AB9"BC!E,'xAC)ᑗ9"å.×´Z1=Z2(2)ᙠঝSËæçÕ¿ᩩÓ
53জᙊᙠxABᓃঝé"8;ঞ'x4c)ᑗ.(OQêWᶇYZJ⌕×ᑏ_\)ூgᫀ(1)jk᪆(2)jk᪆ூk᪆ூᑖ᪆(I)*^åo´OåBC,ìᔠ¦·+ḄឋàPᙊḄᱯឋo×N1=NOå8=N2,o_ìï;(2)Ltl(1)o©ᑗ"N/18CḄ¦ᑖ+PACḄ!",ᙊᙠMḄᚖ¦ᑖ+Dᵫ¼ᓽo_".ூ¾k(1)´¥জ*^OF,ó/40জACḄᑗ+.OE±AC,*/ZC=90°,:.OE//BC,.N1=/OFB,•&OF=OB,:.ZOFB=Z2,.Z1=Z2.(2)ঝᡠO"ᡠ×.জঝজNA8C¦ᑖ+!AC9å"
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55
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《专题18 投影与视图、命题与证明、尺规作图-三年(2020-2022)中考数学真题分项汇编(全国通用)(解析版)》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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55
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