满分5 >
初中数学试题 >
(2007•台湾)如图,△ABC的内切圆分别切、、于D、E、F三点,其中P、Q两...
(2007•台湾)如图,△ABC的内切圆分别切
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/0.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/1.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/2.png)
于D、E、F三点,其中P、Q两点分别在
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/3.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/4.png)
上.若∠A=30°,∠B=80°,∠C=70°,则弧长
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/5.png)
与弧长
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/6.png)
的比值为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/images7.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/7.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/8.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/9.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674025_ST/10.png)
考点分析:
相关试题推荐
(2007•台湾)如图,△ABC中,∠C=90°,D在CB上,E为AB之中点,AD、CE相交于F,且AD=DB.若∠B=20°,则∠DFE=( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674024_ST/images0.png)
A.40°
B.50°
C.60°
D.70°
查看答案
(2007•台湾)小华和小明到同一早餐店买馒头和米浆.已知小华买了5个馒头和5杯米浆;小明买了7个馒头和3杯米浆,且小华花的钱比小明少10元.关于馒头与米浆的价钱,下列叙述何者正确( )
A.2个馒头比2杯米浆多10元
B.2个馒头比2杯米浆少10元
C.12个馒头比8杯米浆多10元
D.12个馒头比8杯米浆少10元
查看答案
(2007•台湾)已知甲、乙、丙三人各有一些钱,其中甲的钱是乙的2倍,乙比丙多1元,丙比甲少11元,求三人的钱共有多少元( )
A.30
B.33
C.36
D.39
查看答案
(2007•台湾)张老板以每颗a元的单价买进水蜜桃100颗.现以每颗比单价多两成的价格卖出70颗后,再以每颗比单价低b元的价格将剩下的30颗卖出,则全部水蜜桃共卖( )
A.70a+30(a-b)元
B.70×(1+20%)×a+30b元
C.100×(1+20%)×a-30(a-b)元
D.70×(1+20%)×a+30(a-b)元
查看答案
(2007•台湾)一袋子中有4颗球,分别标记号码1、2、3、4.已知每颗球被取出的机会相同,若第一次从袋中取出一球后放回,第二次从袋中再取出一球,则第二次取出球的号码比第一次大的机率为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674020_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674020_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110513282467485/SYS201310191105132824674020_ST/2.png)
D.
查看答案