鍥涜竟褰㈡渶鍊奸棶棰?/p>
绫诲瀷涓�銆佸皢鍐涢ギ椹?/p>
1.
濡傚浘锛屽湪姝ｆ柟褰?/p>
ABCD
涓紝鐐?/p>
E
鍦?/p>
BC
涓婏紝
BE
=2,
EC
=1,
鐐?/p>
P
鍦?/p>
BD
涓婏紝鍒?/p>
PE
+
PC
鐨勬渶
灏忓�兼槸
.
2.
濡傚浘锛?/p>
鍦ㄦ鏂瑰舰
ABCD
涓紝
P
鏄?/p>
BD
涓婄殑涓�涓姩鐐癸紝
E
鍦?/p>
BC
涓婏紝
涓?/p>
BE
=1
锛?/p>
CE
=2
锛?/p>
鍒?/p>
PE
+
PC
鐨勬渶灏忓�间负
銆?/p>
3.
濡傚浘鎵�绀猴紝姝ｆ柟褰?/p>
ABCD
鐨勯潰绉负
12
锛?/p>
鈻?/p>
ABE
鏄瓑杈逛笁瑙掑舰锛岀偣
E
鍦ㄦ鏂瑰舰
ABCD
鍐咃紝
鍦ㄥ瑙掔嚎
AC
涓婃湁涓�鐐?/p>
P
锛屼娇
PD
+
PE
鐨勫拰鏈�灏忥紝鍒欒繖涓渶灏忓�间负锛?/p>
锛?/p>
A
銆?/p>
6
B
銆?/p>
2
3
C
銆?/p>
3
D
銆?/p>
2
6
绫诲瀷浜屻�佺偣鍒扮洿绾胯窛绂诲瀭绾挎鏈�鐭?/p>
1.
鍦ㄨ竟闀夸负
2
鑿卞舰
ABCD
涓紝
鈭?/p>
ABC
=60掳
锛?/p>
M
銆?/p>
N
鍒嗗埆涓虹嚎娈?/p>
BC
鍜?/p>
BD
涓婁袱涓姩鐐癸紝
鍒?/p>
MN
+
CN
鐨勬渶灏忓�兼槸
銆?/p>
2.
濡傚浘锛屽湪
Rt
鈻?/p>
ABC
涓紝鈭?/p>
C
锛?/p>
90掳
锛?/p>
AC
锛?/p>
8
锛?/p>
BC
锛?/p>
6
锛岀偣
P
鏄?/p>
AB
涓?
鐨勪换鎰忎竴鐐癸紝浣?/p>
PD
鈯?/p>
AC
浜庣偣
D
锛?/p>
PE
鈯?/p>
CB
浜庣偣
E
锛岃繛鎺?/p>
DE
锛屽垯
DE
鐨勬渶
灏忓�间负
_________
3.
鍦?/p>
鈻?/p>
ABC
涓紝
AB
=6
锛?/p>
AC
=8
锛?/p>
BC
=10
锛?/p>
P
涓鸿竟
BC
涓婁竴鍔ㄧ偣锛?/p>
PE
鈯?/p>
AB
浜?/p>
E
锛?/p>
PF
鈯?/p>
AC
浜?/p>
F
锛?/p>
M
涓?/p>
EF
涓偣锛?/p>
鍒?/p>
AM
鐨勬渶灏忓�间负
锛?/p>