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(2009•福州)如图,弧是以等边三角形ABC一边AB为半径的四分之一圆周,P为...
(2009•福州)如图,弧
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是以等边三角形ABC一边AB为半径的四分之一圆周,P为弧
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上任意一点,若AC=5,则四边形ACBP周长的最大值是( )
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A.15
B.20
C.15+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230519694781493/SYS201310212305196947814011_ST/2.png)
D.15+
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230519694781493/SYS201310212305196947814011_ST/3.png)
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