.
.
涓冨勾绾у叏绛夋祴璇?/p>
涓�锛庨�夋嫨棰橈紙鍏?/p>
3
灏忛锛?/p>
1
锛庡鍥撅紝
EB
浜?/p>
AC
浜?/p>
M
锛?/p>
浜?/p>
FC
浜?/p>
D
锛?/p>
AB
浜?/p>
FC
浜?/p>
N
锛?/p>
鈭?/p>
E=
鈭?/p>
F=90
掳
锛?/p>
鈭?/p>
B=
鈭?/p>
C
锛?/p>
AE=AF
锛?/p>
缁欏嚭涓嬪垪缁撹锛?/p>
鈶犫垹
1=
鈭?/p>
2
锛?/p>
鈶?/p>
BE=CF
锛?/p>
鈶⑩柍
ACN
鈮屸柍
ABM
锛?/p>
鈶?/p>
CD=DN
锛?/p>
鍏?/p>
涓纭殑缁撹鏈夛紙
锛?/p>
A
锛?/p>
4
涓?/p>
B
锛?/p>
3
涓?/p>
C
锛?/p>
2
涓?/p>
D
锛?/p>
1
涓?/p>
2
锛庡鍥撅紝鈻?/p>
ABC
涓虹瓑杈逛笁瑙掑舰锛?/p>
D
銆?/p>
E
鍒嗗埆鏄?/p>
AC
銆?/p>
BC
涓婄殑鐐癸紝涓?/p>
AD=CE
锛?/p>
AE
涓?/p>
BD
鐩镐氦浜庣偣
P
锛?/p>
BF
鈯?/p>
AE
浜庣偣
F
锛庤嫢
BP=4
锛屽垯
PF
鐨勯暱锛?/p>
锛?/p>
A
锛?/p>
2
B
锛?/p>
3
C
锛?/p>
1
D
锛?/p>
2
3
锛庡鍥撅紝
OA=OC
锛?/p>
OB=OD
涓?/p>
OA
鈯?/p>
OB
锛?/p>
OC
鈯?/p>
OD
锛屼笅鍒楃粨璁猴細鈶犫柍
AOD
鈮屸柍
COB
锛涒憽
CD=AB
锛涒憿鈭?/p>
CDA=
鈭?/p>
ABC
锛?/p>
鍏朵腑姝ｇ‘鐨勭粨璁烘槸锛?/p>
锛?/p>