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已知正六边形的边长为1cm，分别以它的三个不相邻的顶点为圆心，1cm长为半径画弧(如图)，则所得到的三条弧的长度之和为（）cm(结果保留π)。
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已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则所得到的三条弧的长
如图有一个不定的正方形ABCD它的两个相对的顶点A.C.分别在边长为1的正六边形一组对边上另外两个顶
一幅美丽的图案在某个顶点处由四个边长相等的正多边形镶嵌而成其中三个分别为正三角形正四边形正六边形则另
）正三角形 （
）正四边形 （
）正五边形 （
）正六边形
已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则所得到的三条弧的长
已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则所得到的三条弧的长
已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则所得到的三条弧的长
如图正三角形的边长为12cm剪去三个角后成为一个正六边形则这个正六边形的内部任意一点到各边的距离和为
如图有一个边长不定的正方形ABCD它的两个相对的顶点A.C.分别在边长为1的正六边形一组平行的对边上
已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则阴影部分面积是cm
已知如图小正六边形的边长是1大正六边形的边长的2A是小正六边形的一个顶点若小正六边形沿大正六边形内
已知一个圆的半径为5cm则它的内接正六边形的边长为__________
将边长为3cm的正三角形的各边三等分以这六个分点为顶点构成一个正六边形再顺次连接这个正六边形的各边中
cm
2
cm
2
cm
2
cm
2
一幅美丽的图案在某个顶点处由四个边长相等的正多边形镶嵌而成其中三个分别为正三角形正四边形正六边形则另
正三角形
正四边形
正五边形
正六边形
边长为1cm的正六边形面积等于cm2
已知正六边形的边长为4cm分别以它的三个不相邻的顶点为圆心边长为半径画弧如图则所得到的三条弧的长度
如图以正六边形的顶点为圆心4cm为半径的六个圆中相邻两圆外切则该正六边形边长是cm．
已知正六边形的边长为1cm分别以它的三个不相邻的顶点为圆心1cm长为半径画弧如图则所得到的三条弧的长
如图由7个形状大小完全相同的正六边形组成网格正六边形的顶点称为格点已知每个正六边形的边长为1△ABC
把边长为3的正三角形各边三等分分割得到图①图中含有1个边长是1的正六边形把边长为4的正三角形各边四等
如图1所示正六边形abcdef的顶点a上固定一个电荷量为Q的正点电荷在其余各顶点分别固定一个电荷量均
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B UncleLiandUncleWangaregoodfriends.Theylivenexttoeachotherandtheirfarmsarebothatthefootofthemountain.Sotheycanhelpeachother.Butneitherofthemlikestousehishead.They’rebothpoorthoughtheyworkhard.Mostvillagershavebuiltnewhousesbuttheystillliveinthelowandbrokenhouses.Theyneverfindoutwhy. OnceUncleLiwenttothetowntobuysomemedicineforhiswife.Inthetownheheardtheapplesinacitywereexpensive.HetoldUncleWangaboutitassoonashewentback.Theydecidedtocarrysomeapplestothecity.Theyborrowedsomemoneyfromtheirfriendsandboughtnearly1000kilogramsofapplesinthevillagesandcarriedthemtothecityonatractor.Badluck!Alotofappleshasalreadybeencarriedtherewhentheyarrived.Afewdayslatertheyhadtosellthematalowprice.Theyfeltunhappyandreturnedtotheirvillage. "Ican’tunderstandwhywesustained蒙受lossesinbusinesswhileothersalwaysprofit赢利"UncleLiaskedoneday. "Thetractorwastoosmall"UncleWangsaidwithoutthinking."We’llcarrymoreapplesonatrucknexttime!" "Iagree!"saidUncleLi."Howfoolishwewere!/ thetwofarmershadtoselltheirapplesatalowpricebecause.
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1868年俄罗斯心理学家乌申斯基出版了对当时的心理学发展成果进行结他因此被称为俄罗斯教育心理学的奠基人
millionlosegoldsinggofewrealfriendwecare Onsunnydaysyoucanenjoyyourselfonthebeaches．
BUncleLiandUncleWangaregoodfriends.Theylivenexttoeachotherandtheirfarmsarebothatthefootofthemountain.Sotheycanhelpeachother.Butneitherofthemlikestousehishead.They’rebothpoorthoughtheyworkhard.Mostvillagershavebuiltnewhousesbuttheystillliveinthelowandbrokenhouses.Theyneverfindoutwhy.OnceUncleLiwenttothetowntobuysomemedicineforhiswife.Inthetownheheardtheapplesinacitywereexpensive.HetoldUncleWangaboutitassoonashewentback.Theydecidedtocarrysomeapplestothecity.Theyborrowedsomemoneyfromtheirfriendsandboughtnearly1000kilogramsofapplesinthevillagesandcarriedthemtothecityonatractor.Badluck!Alotofappleshasalreadybeencarriedtherewhentheyarrived.Afewdayslatertheyhadtosellthematalowprice.Theyfeltunhappyandreturnedtotheirvillage.Ican’tunderstandwhywesustained蒙受lossesinbusinesswhileothersalwaysprofit赢利UncleLiaskedoneday.ThetractorwastoosmallUncleWangsaidwithoutthinking.We’llcarrymoreapplesonatrucknexttime!Iagree!saidUncleLi.Howfoolishwewere!/WhichofthefollowingisTRUE
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