1.
濉┖瀹屾垚鎺ㄧ悊杩囩▼锛?/p>
濡傚浘锛屸埖
AB
鈭?/p>
EF
锛?/p>
宸茬煡
锛?/p>
鈭粹垹
A + =180
0
锛?/p>
锛?/p>
鈭?/p>
DE
鈭?/p>
BC
锛?/p>
宸茬煡
锛?/p>
鈭粹垹
DEF=
锛?/p>
锛?/p>
鈭?/p>
ADE=
锛?/p>
锛?/p>
2
锛?/p>
宸茬煡锛氬鍥撅紝鈭?/p>
ADE
锛濃垹
B
锛屸垹
DEC
锛?/p>
115
掳锛?/p>
姹傗垹
C
鐨勫害鏁帮紟
3.
宸茬煡锛氬鍥撅紝
AD
鈭?/p>
BC
锛屸垹
D
锛?/p>
100
掳锛?/p>
AC
骞冲垎鈭?/p>
BCD
锛?/p>
姹傗垹
DAC
鐨勫害鏁帮紟
4.
宸茬煡
AB
鈭?/p>
CD
锛屸垹
1=70
掳鍒欌垹
2=_______
锛屸垹
3=______
锛屸垹
4=______
4
3
2
1
A
C
D
B
5.
宸茬煡锛氬鍥?/p>
4
锛?/p>
AB
鈭?/p>
CD
锛岀洿绾?/p>
EF
鍒嗗埆浜?/p>
AB
銆?/p>
CD
浜庣偣
E
銆?/p>
F
锛屸垹
BEF
鐨勫钩鍒嗙嚎涓庘垹
DEF
鐨勫钩鍒嗙嚎鐩镐氦浜?/p>
鐐?/p>
P
锛庢眰鈭?/p>
P
鐨勫害鏁?/p>
6.
鐩寸嚎
AB
銆?/p>
CD
鐩镐氦浜?/p>
O
锛?/p>
OE
骞冲垎鈭?/p>
AOC
锛屸垹
EOA
锛氣垹
AOD=1
锛?/p>
4
锛屾眰鈭?/p>
EOB
鐨勫害鏁帮紟
7
锛庡鍥撅紝锛★饥鈭ワ迹锛わ紝锛ワ鸡鍒嗗埆浜わ肌锛€�侊迹锛や簬锛�侊籍锛屸垹锛ワ辑锛紳
50
掳锛岋辑锛у钩鍒嗏垹锛辑锛︼紝锛姬浜?
A
C
D
E
F
B
D
E
B
C
A