浜屼腑鐗囧尯鍚堜綔鍏卞悓浣撶涓�娆″鎯呮祴璇?/p>
鍒濅簩鏁板璇曞嵎
鍛介锛?/p>
瀹℃牳锛?/p>
2018/10/9
寰楀垎锛?/p>
涓�銆侀�夋嫨棰橈紙姣忛
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庝笅鍒楀浘褰㈡槸鍏ㄧ瓑鍥惧舰鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
2
锛庡鍥撅紝
E
锛?/p>
B
锛?/p>
F
锛?/p>
C
鍥涚偣鍦ㄤ竴鏉＄洿绾夸笂锛?/p>
EB=CF
锛屸垹
A
=
鈭?/p>
D
锛屽啀娣讳竴涓潯浠朵粛涓嶈兘璇?/p>
鏄庘柍
ABC
鈮屸柍
DEF
鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
AB
=
DE
B
锛?/p>
DF
鈭?/p>
AC
C
锛庘垹
E
=
鈭?/p>
ABC
D
锛?/p>
AB
鈭?/p>
DE
3
锛庡鍥炬槸鐢?/p>
4
涓浉鍚岀殑灏忔鏂瑰舰缁勬垚鐨勭綉鏍煎浘锛屽叾涓垹
1+
鈭?/p>
2
绛変簬锛?/p>
锛?/p>
A
锛?/p>
150掳
B
锛?/p>
180掳
C
锛?/p>
210掳
D
锛?/p>
225掳
4
锛庡鍥撅紝灏嗕袱鏍归挗鏉?/p>
AA
鈥?/p>
銆?/p>
BB
鈥?/p>
鐨勪腑鐐?/p>
O
杩炲湪涓�璧凤紝浣?/p>
AA
鈥?/p>
銆?/p>
BB
鈥?/p>
鑳界粫鐫�鐐?/p>
O
鑷敱杞姩锛?/p>
灏卞仛鎴愪簡涓�涓祴閲忓伐鍏凤紝鐢变笁瑙掑舰鍏ㄧ瓑鍙煡
A
鈥?/p>
B
鈥?/p>
鐨勯暱绛変簬鍐呮Ы瀹?/p>
AB
锛岄偅涔堝垽瀹?/p>
鈻?/p>
OAB
鈮?/p>
OA
鈥?/p>
B
鈥?/p>
鐨?/p>
鈻?/p>
鐞嗙敱鏄紙
锛?/p>
A
锛?/p>
SAS
B
锛?/p>
ASA
C
锛?/p>
SSS
D
锛?/p>
AAS
5
锛庡皬鏄庝粠闀滃瓙涓湅鍒板闈㈢數瀛愰挓绀烘暟濡傚浘鎵�绀猴紝杩欐椂鐨勬椂鍒诲簲鏄紙
锛?/p>
A
锛?/p>
21
鈭?/p>
10
B
锛?/p>
10
鈭?/p>
21
C
锛?/p>
10
鈭?/p>
51
D
锛?/p>
12
鈭?/p>
01
6
锛?/p>
濡傚浘锛?/p>
鍦?/p>
鈻?/p>
ABC
涓紝
AB
=
AC
=20cm
锛?/p>
DE
鍨傜洿骞冲垎
AB
锛?/p>
鍨傝冻涓?/p>
E
锛?/p>
浜?/p>
AC
浜?/p>
D
锛?/p>
鑻?/p>
鈻?/p>
DBC
鐨勫懆闀夸负
35cm
锛屽垯
BC
鐨勯暱涓猴紙
锛?/p>