1
鏁欏涓婚
鐗规畩骞宠鍥涜竟褰㈠姩鐐归棶棰?/p>
鏁欏鐩爣
閲?/p>
瑕?/p>
鐭ヨ瘑鐐?/p>
1.
2.
3.
鏄撻敊鐐?/p>
鏁欏杩囩▼
鐗规畩鍥涜竟褰細鍔ㄧ偣闂
棰樺瀷涓�锛?/p>
1
锛庡凡鐭ョ洿瑙掓褰?/p>
ABCD
涓紝
AD
鈭?/p>
BC
锛?/p>
AB
鈯?/p>
BC
锛?/p>
AD
=2
锛?/p>
BC
=
DC
=5
锛岀偣
P
鍦?/p>
BC
涓婄Щ鍔紝鍒欏綋
PA
+
PD
鍙?/p>
鏈�灏忓�兼椂锛屸柍
APD
涓竟
AP
涓婄殑楂樹负锛?/p>
锛?/p>
A
銆?
17
17
2
B
銆?/p>
17
17
4
C
銆?/p>
17
17
8
D
銆?/p>
3