2019-2020
骞村叓骞寸骇涓嬪鏈熺涓�娆℃湀鑰冩暟瀛﹁瘯鍗?/p>
(VI)
棰?/p>
鍙?/p>
涓�
浜?/p>
涓?/p>
鎬?/p>
鍒?/p>
寰?/p>
鍒?/p>
1
2
3
4
5
6
7
8
9
10
C.
鑻?/p>
a
銆?/p>
b
銆?/p>
c
鏄?/p>
Rt
鈻?/p>
ABC
鐨勪笁杈癸紝鈭?/p>
A=90
掳锛屽垯
a
2
锛?/p>
b
2
锛?/p>
c
2
锛?/p>
D.
鑻?/p>
a
銆?/p>
b
銆?/p>
c
鏄?/p>
Rt
鈻?/p>
ABC
鐨勪笁杈癸紝鈭?/p>
C=90
掳锛屽垯
a
2
锛?/p>
b
2
锛?/p>
c
2
锛?/p>
4
銆佷笅鍒楁牴寮忎笉鑳戒笌鍚堝苟鐨勬槸锛?/p>
锛?/p>
A. B. C.3
1
1
D.
锛?/p>
5
銆佺洿瑙掍笁瑙掑舰鐨勪袱鐩磋杈瑰垎鍒负
5cm
锛?/p>
12cm
锛屽叾涓枩杈逛笂鐨勯珮涓猴紙
锛?/p>
A
锛?/p>
6cm B
锛?/p>
8
锛?/p>
5cm C
锛?/p>
30
锛?/p>
13cm D
锛?/p>
60
锛?/p>
13 cm
6
銆佷笅鍒楀懡棰樼殑閫嗗懡棰樻槸鐪熷懡棰樼殑鏄紙
锛?/p>
A
锛庤嫢
a=b
锛屽垯
a
2
=b
2
B
锛庡叏绛変笁瑙掑舰鐨勫懆闀跨浉绛?/p>
C
锛庤嫢
a=0
锛屽垯
ab=0 D
锛庢湁涓よ竟鐩哥瓑鐨勪笁瑙掑舰鏄瓑鑵?/p>
7
銆佸凡鐭ヤ竴涓?/p>
Rt
鈻崇殑涓よ竟闀垮垎鍒负
3
鍜?/p>
4
锛屽垯绗笁杈归暱鐨勫钩鏂规槸锛?/p>
锛?/p>
A. 25
B. 14
C. 7
D. 7
鎴?/p>
25
8
銆佸凡鐭ヤ笁瑙掑舰鐨勪笁杈归暱涔嬫瘮涓?/p>
1
鈭?/p>
1
鈭?/p>
锛屽垯姝や笁瑙掑舰涓�瀹氭槸锛?/p>
锛?/p>
A
锛庨攼瑙掍笁瑙掑舰
B
锛庨挐瑙掍笁瑙掑舰
C
锛庣瓑杈逛笁瑙掑舰
D
锛庣瓑鑵扮洿瑙掍笁瑙掑舰
9
銆佲柍
ABC
涓紝
AB
锛?/p>
15
锛?/p>
AC
锛?/p>
13
锛岄珮
AD
锛?/p>
12
锛屽垯鈻?/p>
ABC
鐨勫懆闀夸负锛?/p>
锛?/p>
A
锛?/p>
42 B
锛?/p>
32 C
锛?/p>
42
鎴?/p>
32 D
锛?/p>
37
鎴?/p>
33
10
锛庝簲鏍瑰皬鏈ㄦ锛屽叾闀垮害鍒嗗埆涓?/p>
7
锛?/p>
15
锛?/p>
20
锛?/p>
24
锛?/p>
25
锛岀幇灏嗕粬浠憜鎴愪袱涓洿瑙掍笁瑙掑舰锛屽叾涓?
姝ｇ‘鐨勬槸锛?/p>
锛?/p>
浜屻�佸～绌洪锛堟瘡灏忛
3
鍒嗐�傛�昏
30
鍒嗐�?/p>
锛?/p>
11
銆佸湪瀹炴暟鑼冨洿鍐呭垎瑙ｅ洜寮?/p>
x
2
-5
锛?/p>
.
12
銆佽嫢
锛屽垯
_______ ,
______ _____
銆?/p>
13.
濡傚浘
7
锛屼竴涓笁绾у彴闃讹紝瀹冪殑姣忎竴绾х殑闀垮鍜岄珮鍒嗗埆涓?/p>
20
銆?/p>
3
銆?/p>
2
锛?/p>
A
鍜?/p>
B
鏄繖涓彴闃朵袱涓浉瀵圭殑绔偣锛?/p>
A
鐐规湁涓�鍙殏铓侊紝鎯冲埌
B
鐐瑰幓鍚冨彲