满分5 >
初中数学试题 >
(2007•威海)如图,AB是⊙O的直径,点C、D、E都在⊙O上,若∠C=∠D=...
(2007•威海)如图,AB是⊙O的直径,点C、D、E都在⊙O上,若∠C=∠D=∠E,则∠A+∠B=
度.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906013_ST/images0.png)
考点分析:
相关试题推荐
(2007•威海)计算:(π-3)
÷
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906012_ST/0.png)
=
.
查看答案
(2007•威海)△ABC与平行四边形DEFG如图放置,点D,G分别在边AB,AC上,点E,F在边BC上.已知BE=DE,CF=FG,则∠A的度数( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906011_ST/images0.png)
A.等于80°
B.等于90°
C.等于100°
D.条件不足,无法判断
查看答案
(2007•威海)如图,一条街道旁有A,B,C,D,E五幢居民楼.某大桶水经销商统计各楼居民每周所需大桶水的数量如下表:
他们计划在这五幢楼中租赁一间门市房,设立大桶水供应点.若仅考虑这五幢楼内的居民取水所走路程之和最小,可以选择的地点应在( )
A.B楼
B.C楼
C.D楼
D.E楼
查看答案
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906009_ST/images0.png)
(2007•威海)如图,小亮在操场上玩,一段时间内沿M-A-B-M的路径匀速散步,能近似刻画小亮到出发点M的距离y与时间x之间关系的函数图象是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906009_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906009_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906009_ST/images3.png)
D.
查看答案
(2009•鄂州)如图,直y=mx与双曲线y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906008_ST/0.png)
交于点A,B.过点A作AM⊥x轴,垂足为点M,连接BM.若S
△ABM=1,则k的值是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110459848190655/SYS201310191104598481906008_ST/images1.png)
A.1
B.m-1
C.2
D.m
查看答案