浜烘暀鐗堝叓骞寸骇鏁板涓嬪唽绗崄涓冪珷鍕捐偂瀹氱悊
17.2
鍕捐偂瀹氱悊鐨勯�嗗畾鐞嗙粌涔?/p>
绗?/p>
1
璇炬椂
鍕捐偂瀹氱悊鐨勯�嗗畾鐞?/p>
涓�銆侀�夋嫨棰?/p>
1.
涓嬪垪鍚勭粍鏁颁腑锛屾槸鍕捐偂鏁扮殑鏄紙
锛?/p>
A. 14,36,39
B. 8,24,25
C. 8,15,17
D. 10,20,26
2.
涓嬪垪瀹氱悊涓紝鏈夐�嗗畾鐞嗙殑涓暟鏄紙
锛?/p>
鈶犳湁涓よ竟鐩哥瓑鐨勪笁瑙掑舰鏄瓑鑵颁笁瑙掑舰
;
鈶¤嫢涓夎褰㈢殑涓夎竟闀?/p>
a
锛?/p>
b
锛?/p>
c
婊¤冻
a
2
+b
2
=c
2
,
鍒欒
涓夎褰㈡槸鐩磋涓夎褰?/p>
;
鈶㈠叏绛変笁瑙掑舰鐨勫搴旇鐩哥瓑
;
鈶ｈ嫢
a=b, a
2
=b
2
.
A. 1
涓?/p>
B. 2
涓?/p>
C. 3
涓?/p>
D. 4
涓?/p>
3
锛庝笅闈㈠悇閫夐」缁欏嚭鐨勬槸涓?/p>
瑙掑舰涓悇杈圭殑闀垮害鐨勫钩鏂规瘮锛屽叾涓笉鏄洿瑙掍笁瑙掑舰鐨勬槸
( )
锛?/p>
A.1
鈭?/p>
1
鈭?/p>
2
B.1
鈭?/p>
3
鈭?/p>
4
C.9
鈭?/p>
25
鈭?/p>
26
D.25
鈭?/p>
144
鈭?/p>
169
4.(
鏄撻敊棰?/p>
)
鍦ㄢ柍
ABC
涓紝
鈭?/p>
A
锛?/p>
鈭?/p>
B
锛?/p>
鈭?/p>
C
鐨勫杈瑰垎鍒槸
a
锛?/p>
b
锛?/p>
c
锛?/p>
閭ｄ箞涓嬮潰涓嶈兘鍒ゅ畾鈻?/p>
ABC
鏄洿瑙掍笁瑙掑舰鐨勬槸锛?/p>
锛?/p>
A.
鈭?/p>
B=
鈭?/p>
C-
鈭?/p>
A
B.a
2
= (b+c) (b-c)
C.
鈭?/p>
A
锛氣垹
B
锛氣垹
C=5
锛?/p>
4
锛?/p>
3
D.a : b : c=5 : 4 : 3
5.
浜旀牴灏忔湪妫掞紝鍏堕暱搴﹀垎鍒负
7
锛?/p>
15
锛?/p>
20
锛?/p>
24
锛?/p>
25
锛岀幇灏嗗畠浠憜鎴愬悇閫夐」
鎵�绀虹殑涓や釜鐩?/p>
瑙掍笁瑙掑舰锛屽叾涓纭殑鏄紙
锛?/p>
浜屻�佸～绌洪
6
锛庡湪涓や釜鍛介涓紝濡傛灉绗竴涓懡棰樼殑棰樿鏄浜屼釜鍛介鐨勭粨璁猴紝鑰岀涓�涓懡棰樼殑缁撹
鏄浜屼釜鍛介鐨勯璁撅紝
閭ｄ箞杩欎袱涓懡棰樺彨鍋?/p>
____________
锛?/p>
濡傛灉鎶婂叾涓竴涓懡棰樺彨鍋氬師鍛介锛?/p>
閭ｄ箞鍙︿竴涓懡棰樺彨鍋氬畠鐨?/p>
____________
锛?/p>