鍒濅腑鏁板闈掑勾鏁欏笀瑙ｉ绔炶禌璇曞嵎
涓�銆佸～绌猴紙鏈鍏辨湁
10
灏忛锛屾瘡灏忛
4
鍒嗭紝鍏?/p>
40
鍒嗭級
1
锛庡嚱鏁?/p>
1
1
2
飥?/p>
飥?
飥?/p>
飥?/p>
x
x
y
涓紝鑷彉閲?/p>
x
鐨勫彇鍊艰寖鍥存槸
.
2
锛庡渾閿ョ殑姣嶇嚎闀夸负
5cm
锛岄珮涓?/p>
3 cm
锛屽湪瀹冪殑渚ч潰灞曞紑鍥句腑锛屾墖褰㈢殑鍦嗗績
瑙掓槸
搴?/p>
.
3
锛庡凡鐭?/p>
3
飥?/p>
xy
锛岄偅涔?/p>
y
x
y
x
y
x
飥?/p>
鐨勫�兼槸
.
4
锛庘柍
ABC
涓紝
D
銆?/p>
E
鍒嗗埆鏄?/p>
AB
銆?/p>
AC
涓婄殑鐐癸紝
DE//BC
锛?/p>
BE
涓?/p>
CD
鐩镐氦
浜庣偣
O
锛屽湪杩欎釜鍥句腑锛岄潰绉浉绛夌殑涓夎褰㈡湁
瀵?/p>
.
5
锛庝笉绛夊紡
x
x
4
11
5
飩?/p>
飥?/p>
鐨勬鏁存暟瑙ｇ殑鍏辨湁
涓紟
6
锛庡嚱鏁?/p>
1
3
飥?/p>
飥?/p>
飥?/p>
x
x
y
鐨勫浘璞″湪
璞￠檺锛?/p>
7
锛庡湪鈻?/p>
ABC
涓紝
AB
锛?/p>
10
锛?/p>
AC
锛?/p>
5
锛?/p>
D
鏄?/p>
BC
涓婄殑涓�鐐癸紝涓?/p>
BD
锛?/p>
DC
锛?/p>
2
锛?/p>
3
锛屽垯
AD
鐨勫彇鍊艰寖鍥存槸
.
8
锛庡叧浜庤嚜鍙橀噺
x
鐨勫嚱鏁?/p>
c
bx
ax
y
飥?/p>
飥?/p>
飥?/p>
2
鏄伓鍑芥暟鐨勬潯浠舵槸
.
9
锛庤嫢鍏充簬鏈煡鏁?/p>
x
鐨勬柟绋?/p>
x
p
x
飥?/p>
飥?/p>
鏈変袱涓笉鐩哥瓑鐨勫疄鏁版牴锛屽垯瀹炴暟
p
鐨勫彇鍊艰寖鍥存槸
.
10
锛?/p>
AB
銆?/p>
AC
涓衡姍
O
鐩哥瓑鐨勪袱寮︼紝寮?/p>
AD
浜?/p>
BC
浜?/p>
E
锛岃嫢
AC
锛?/p>
12
锛?/p>
AE
锛?/p>
8
锛?/p>
鍒?/p>
AD
锛?/p>
.
浜屻�?/p>
锛堟湰棰樻弧鍒?/p>
12
鍒嗭級
11
锛庡鍥撅紝宸茬煡鐐?/p>
A
鍜岀偣
B
锛屾眰浣滀竴涓渾鈯?/p>
O
锛?/p>
鍜屼竴涓笁瑙掑舰
BCD
锛屼娇鈯?/p>
O
缁忚繃鐐?/p>
A
锛屼笖浣挎墍浣滅殑
鍥惧舰鏄绉拌酱涓庣洿绾?/p>
AB
鐩镐氦鐨勮酱瀵圭О鍥惧舰锛?/p>
锛堣姹?/p>
鍐欏嚭浣滄硶锛屼笉瑕佹眰璇佹槑锛?/p>
.
.
A
B