题目内容
如图14,△ABC中,AB =AC,AD⊥BC,M为AD中点,CM交AB于P点,DN∥CP交AB于N点.若AB =6cm,则AP = cm.( )
图14
A.2 B.3 C.4 D.5
思路解析:在△AND中,∵M为AD中点,DN∥CP,?
∴AP =PN.?
又∵AB =AC,AD⊥BC,∴BD =DC.?
在△BCP中,∵BD =DC,DN∥PC,∴BN =NP.?
∴AP =
=2.
答案:A
练习册系列答案
相关题目
题目内容
如图14,△ABC中,AB =AC,AD⊥BC,M为AD中点,CM交AB于P点,DN∥CP交AB于N点.若AB =6cm,则AP = cm.( )
图14
A.2 B.3 C.4 D.5
思路解析:在△AND中,∵M为AD中点,DN∥CP,?
∴AP =PN.?
又∵AB =AC,AD⊥BC,∴BD =DC.?
在△BCP中,∵BD =DC,DN∥PC,∴BN =NP.?
∴AP ==2.
答案:A
如图，△ABC中，AD=2DB，AE=3EC，CD与BE交于F，若
