Mathematics
Junior High
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FD=EF
2 三角形全等性質的應用
... ADF SACFE (AAS)
右圖為長方形紙張ABCD,今將紙張沿對角線AC對
摺,D點落在E點,P為AE與BC的交點。試回答下
列問題:
A
3.
D
建
B
(1) △ABP 和△CEP 是否全等?若全等,是根據何種全
P
E
C
等性質?
(2)若AB=1,AD=3,則AP=?
(1)
△ABP、△CEP中
AD = AE =3
-6
1:<B=<E:90°
AB = CE
ACTO
BP = √4
APB E
<CPE
L
AP = √√4
(1)A:是(AAS)
...△ABPEP(AAS)
(2)A:AE
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