灏忓崌鍒濇暟瀛︾患鍚堟ā鎷熻瘯鍗?/p>
8
涓�銆佸～绌洪锛?/p>
2
锛庡湪涓嬪垪鐨勬暟瀛椾笂鍔犱笂寰幆鐐癸紝浣夸笉绛夊紡鑳藉鍙樻纭細
0.9195
锛?/p>
0.9195
锛?/p>
0.9195
锛?/p>
0.9195
锛?/p>
0.9195
3
锛庡鍥撅紝
O
涓衡柍A1A6A12
鐨勮竟
A1A12
涓婄殑涓�鐐癸紝鍒嗗埆杩炵粨
OA2
锛?/p>
OA3
锛屸�︼紝
OA11
锛屽浘涓叡鏈?/p>
______
涓笁
瑙掑舰锛?/p>
4
锛庝粖骞村皬瀹?/p>
15
宀侊紝灏忎寒
12
宀侊紝
______
骞村墠锛屽皬瀹囧拰灏忎寒鐨勫勾榫勫拰鏄?/p>
15
锛?/p>
5
锛庡湪鍓嶄笁鍦哄嚮鐞冩父鎴忎腑锛岀帇鏂板悓瀛﹀緱鍒嗗垎鍒负
139
锛?/p>
143
锛?/p>
144
锛屼负浣垮墠
4
鍦虹殑骞冲潎寰楀垎涓?/p>
145
锛岀鍥?/p>
鍦哄ス搴斿緱
______
鍒嗭紟
6
锛庢湁杩欐牱鐨勮嚜鐒舵暟锛氬畠鍔?/p>
1
鏄?/p>
2
鐨勫�嶆暟锛屽姞
2
鏄?/p>
3
鐨勫�嶆暟锛屽姞
3
鏄?/p>
4
鐨勫�嶆暟锛屽姞
4
鏄?/p>
5
鐨勫�嶆暟锛屽姞
5
鏄?/p>
6
鐨勫�嶆暟锛屽姞
6
鏄?/p>
7
鐨勫�嶆暟锛屽湪杩欑鑷劧鏁颁腑闄や簡
1
浠ュ鏈�灏忕殑鏄?/p>
______
锛?/p>
7
锛?/p>
濡傚浘锛?/p>
鍗婂渾
S1
鐨勯潰绉槸
14.13cm
2
鍦?/p>
S
2
鐨勯潰绉槸
19.625cm
2
閭ｄ箞闀挎柟褰?/p>
锛堥槾褰遍儴鍒嗭級
鐨勯潰绉槸
______cm
2
锛?/p>
8
锛庣洿瑙掍笁瑙掑舰
ABC
鐨勪笁杈瑰垎鍒负
AC=3
锛?/p>
AB=1.8
锛?/p>
BC=2.4
锛?/p>
ED
鍨傜洿浜?/p>
AC
锛屼笖
ED=1
锛屾鏂瑰舰鐨?/p>
BFEG
杈?/p>
闀挎槸
______
锛?/p>