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中考填空-求线段长度

中考填空-求线段长度

Assessment

Presentation

Mathematics

7th Grade

Practice Problem

Hard

Created by

Nalo Zhu

FREE Resource

0 Slides • 8 Questions

1

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【2022.16】如图,正方形ABCD中,点E、F分别在边BC、CD上,AE=AF,∠EAF=30°,则∠AEB=

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°

2

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【2022.16】如图,正方形ABCD中,点E、F分别在边BC、CD上,AE=AF,∠EAF=30°,若△AEF的面积等于1,则AB的值是

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3

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【2019.15】如图,将Rt△ABC的斜边AB绕点A顺时针旋转 α(0°<α<90°)\alpha\left(0\degree<\alpha<90\degree\right) 得到AE,直角边AC绕点A逆时针旋转 β(0°<β<90°)\beta\left(0\degree<\beta<90\degree\right) 得到AF,连结EF,若AB=3,AC=2,且 α+β=B\alpha+\beta=\angle B ,则EF=

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4

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【2017.18】如图,AB为圆O的弦,AB=6,点C是圆O上的一个动点,且∠ACB=45°,若点M、N分别是AB、AC的中点,则MN长的最大值是

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5

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【2016.17】如图,AB是圆O的直径,AC、BC是圆O的弦,直径DE⊥AC于点P,若点D在优弧ABC上,AB=8,BC=3,则DP=

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6

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【2014.17】如图,AD是△ABC的高,AE是△ABC的外接圆O的直径,且 AB=42AC=5AD=4AB=4\sqrt[]{2},AC=5,AD=4 ,则圆O的直径AE=

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7

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【2013.18】如图,在梯形ABCD中,AD//BC,AB=CD=AD=5,∠B=60°,则BC=

8

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【2012.18】如图,∠APB=30°,圆心在PB上的圆O的半径为1cm,OP=3cm,若圆O沿BP方向平移,当圆O与PA相切时,圆心O平移的距离为

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pattern-tertiary
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【2022.16】如图,正方形ABCD中,点E、F分别在边BC、CD上,AE=AF,∠EAF=30°,则∠AEB=

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°

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