涓冨勾绾т笅鍐屾暟瀛﹁瘯鍗蜂竴
(
鏃堕棿锛?/p>
120
鍒嗛挓
婊″垎锛?/p>
100
鍒?/p>
)
涓�銆佺粏蹇冨～涓�濉?/p>
(
姣忛
2
鍒嗭紝鍏?/p>
24
鍒?/p>
)
1.
鍦ㄥ悓涓�骞抽潰鍐咃紝涓ゆ潯鐩寸嚎鏈?/p>
绉嶄綅缃叧绯伙紝瀹冧滑鏄?/p>
锛?/p>
2
锛庤嫢鐩寸嚎
a//b
锛?/p>
b//c
锛屽垯
锛屽叾鐞嗙敱鏄?/p>
锛?/p>
3.
濡傚浘
1
鐩寸嚎
AB
锛?/p>
CD
锛?/p>
EF
鐩镐氦涓庣偣
O
锛屽浘涓?/p>
AOE
飪?/p>
鐨勫椤惰鏄?/p>
锛?/p>
COF
飪?/p>
鐨勯偦琛ヨ鏄?/p>
銆?/p>
鍥?/p>
3
4
锛?/p>
濡?/p>
鍥?/p>
2
锛?
瑕?/p>
鎶?/p>
姹?/p>
涓?/p>
鐨?/p>
姘?/p>
寮曞埌
D
澶勶紝
鍙?/p>
杩?/p>
C
鐐?/p>
寮?/p>
CD
鈯?/p>
AB
浜?/p>
D
锛岀劧鍚庢部
CD
寮�娓狅紝鍙娇鎵�寮�娓犻亾鏈�
鐭?/p>
锛?/p>
璇?/p>
璇?/p>
鏄?/p>
璁?/p>
璁?/p>
鐨?/p>
渚?/p>
鎹細
锛?/p>
5
锛庣偣
P
锛?/p>
-2
锛?/p>
3
锛夊叧浜?/p>
X
杞村绉扮偣鐨勫潗鏍囨槸
銆傚叧浜庡師鐐瑰绉扮偣鐨勫潗鏍囨槸
銆?/p>
6
锛庢妸鈥滃椤惰鐩哥瓑鈥濆啓鎴愨�滃鏋溾�︹�﹂偅涔堚�︹�︹�濈殑褰㈠紡涓?/p>
銆?/p>
7.
涓�涓瓑鑵颁笁瑙掑舰鐨勪袱杈归暱鍒嗗埆鏄?/p>
3cm
鍜?/p>
6cm,
鍒欏畠鐨勫懆闀挎槸
cm.
8.
鑻ョ偣
M
锛?/p>
a+5,a-3
锛夊湪
y
杞翠笂锛屽垯鐐?/p>
M
鐨勫潗鏍囦负
銆?/p>
9
锛庤嫢
P
锛?/p>
X
锛?/p>
Y
锛夌殑鍧愭爣婊¤冻
XY
锛?/p>
0
锛屼笖
X+Y<0,
鍒欑偣
P
鍦ㄧ
璞￠檺
銆?/p>
10.
涓�涓杈瑰舰鐨勬瘡涓�涓瑙掔瓑浜?/p>
30
锛屽垯杩欎釜澶氳竟褰㈡槸
杈瑰舰锛屽叾鍐呰鍜屾槸
銆?/p>
11
锛庣洿瑙掍笁瑙掑舰涓や釜閿愯鐨勫钩鍒嗙嚎鎵�鏋勬垚鐨勯挐瑙掔瓑浜?/p>
搴︺�?/p>
12
锛庡鍥?/p>
3
锛屽洓杈瑰舰
ABCD
涓紝
1
2
飪?/p>
飪?/p>
涓?/p>
婊¤冻
鍏崇郴鏃?/p>
AB//CD
锛屽綋
鏃?/p>
AD//BC(
鍙鍐欏嚭涓�涓綘
璁や负鎴愮珛鐨勬潯浠?/p>
)
銆?/p>
浜屻�?/p>
绮惧績閫変竴閫?/p>
(
涓嬪垪鍚勫皬棰樼殑鍥涗釜閫夐」涓紝
鏈変笖鍙湁涓�涓槸绗﹀悎棰樻剰鐨勶紝
鎶婁綘璁や负绗﹀悎棰樻剰鐨勭瓟妗堜唬鍙峰～鍏ョ瓟棰樿〃涓紝
姣忓皬棰?/p>
2
鍒嗭紝鍏?/p>
12
鍒?/p>
)
棰?/p>
鍙?/p>
1
2
3
4
5
6
绛?/p>
妗?/p>
1
锛庝笅鍒楀悇鍥句腑锛屸垹
1
涓庘垹
2
鏄椤惰鐨勬槸锛?/p>
( )
2
锛庝互涓嬪垪鍚勭粍绾挎涓鸿竟锛岃兘缁勬垚涓夎褰㈢殑鏄?/p>
( )
A
銆?/p>
2cm, 3cm, 5cm B
銆?/p>
5cm, 6cm, 10cm C
銆?/p>
1cm, 1cm, 3cm D
銆?/p>
3cm, 4m, 9cm
3
锛庢煇浜哄埌鐡风爾鍟嗗簵鍘讳拱涓�绉嶅杈瑰舰褰㈢姸鐨勭摲鐮栫敤鏉ラ摵璁炬棤缂濆湴鏉匡紝浠栬喘涔扮殑鐡风爾褰㈢姸涓嶅彲浠ユ槸
( )
A
锛庢涓夎褰?/p>
B
锛庨暱鏂瑰舰
C
锛庢鍏竟褰?/p>
D
锛庢鍏竟褰?/p>
4
锛庡湪鐩磋鍧愭爣绯讳腑锛岀偣
P
锛?/p>
-2
锛?/p>
3
锛夊悜鍙冲钩绉?/p>
3
涓崟浣嶉暱搴﹀悗鐨勫潗鏍囦负
( )
A
锛庯紙
3
锛?/p>
6
锛?/p>
B.(1,3) C.(1,6) D.(3,3)
5.
濡傚浘
4
锛屼笅鍒楁潯浠朵腑锛屼笉鑳藉垽鏂洿绾?/p>
a//b
鐨勬槸锛?/p>
锛?/p>
A
銆佲垹
1=
鈭?/p>
3 B
銆佲垹
2=
鈭?/p>
3 C
銆佲垹
4=
鈭?/p>
5 D
銆佲垹
2+
鈭?/p>
4=180
掳
6.
涓嬪垪鍥惧舰涓湁绋冲畾鎬х殑鏄紙
锛?/p>
A
锛庢鏂瑰舰
B.
闀挎柟褰?/p>
C.
鐩磋涓夎褰?/p>
D.
骞宠鍥涜竟褰?/p>
涓夛紟浣滃浘棰樸�?/p>
(
姣忓皬棰?/p>
4
鍒嗭紝鍏?/p>
12
鍒?/p>
1
锛庝綔鍑洪挐瑙?/p>
ABC
飦?/p>
鐨勪笁鏉￠珮绾裤�?/p>
2
锛庡湪涓嬮潰鎵�绀虹殑鏂规牸绾镐腑锛岀敾鍑哄皢鍥句腑鈻?/p>
ABC
鍚戝彸骞崇Щ
4
鏍煎悗鐨勨柍
A
銆?/p>
B
銆?/p>
C
銆?/p>
,
鐒跺悗鍐嶇敾鍑衡柍
A
銆?/p>
B
銆?/p>
C
銆佸悜涓嬪钩绉?/p>
3
鏍?/p>
鍚庣殑鈻?/p>
A"B"C"
3
銆佸啓鍑哄浘涓?/p>
A
銆?/p>
B
銆?/p>
C
銆?/p>
D
銆?/p>
E
銆?/p>
F
鍚勭偣鐨勫潗鏍囷細
鍥涖�佸鐫�璇寸偣鐞嗐�?/p>
(
姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
6
鍒?/p>
)
1
銆?/p>
濡傚浘鍥?/p>
(1)
锛?/p>
鈭?/p>
1
锛濃垹
2
锛濃垹
3
锛?/p>
瀹屾垚璇寸悊杩囩▼骞舵敞鏄庣悊鐢憋細
(1)
鍥犱负鈭?/p>
1
锛濃垹
2
鎵�浠?/p>
____
鈭?/p>
____ ( )
(2)
鍥犱负
鈭?/p>
1
锛濃垹
3
鎵�浠?/p>
____
鈭?/p>
____ ( )
2
銆佸凡鐭?/p>
:
濡傚浘
,
鈭?/p>
1=
鈭?/p>
2.
姹傝瘉
:
鈭?/p>
3+
鈭?/p>
4=180
掳
璇佹槑
:
鈭碘垹
1=
鈭?/p>
2
c
b
a
5
4
3
2
1
A
B
D
C
1
2
A
B
C
D
鍥?/p>
2
A
F
C
E
B
D
鍥?/p>
1
O
A
B
C
鍥?/p>
4