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ID:5680818
大小:583.00 KB
页数:4页
时间:2017-12-22
《七年级数学平行线判定及性质拔高练习》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。
1、七年级数学平行线判定及性质拔高练习一、单选题(共8道,每道15分)1.如图1,已知AB∥CD,若∠A=20°,∠E=35°,则∠C=() A.15° B.20° C.35° D.55° 2.如图,AB//CD,∠1=50°,∠2=110°,则∠3=() A.50° B.60° C.70° D.80° 3.如图,若AB∥EF,∠C=60°,则∠1、∠2、∠3的关系是() A.∠2=∠1+∠3 B.∠1+∠2+∠3=180° C.∠1+∠2-∠3=60° D.∠2+∠3-∠1=60° 4.如图,AB∥CD,∠ABF=∠ABE,∠CDF=∠CDE,则∠E:∠F等于() 第4页共4页A.
2、2:1 B.3:1 C.3:2 D.4:3 5.如图,∠ABC=∠ADC,BF、DE分别平分∠ABC与∠ADC,∠1=∠3.下列正确的结论有()个. ①DE//BF;②AB//CD;③∠1=∠2;④∠A=∠C.A.1 B.2 C.3 D.4 6.如图,已知,则的度数是() A. B. C. D. 7.如右图,AB∥CD,直线PQ分别交AB、CD于点E、F,EG是∠FED的平分线,交AB于点G,若∠QED=40°,那么∠EGB等于() 第4页共4页A.80° B.100° C.110° D.120° 8.下列说法错误的是()A.内错角相等,两直线平行 B.两直线平行,同旁内角互补
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