绗?/p>
20
璁?/p>
鐭╁舰銆佽彵褰€�佹鏂瑰舰瀵煎妗?/p>
1
鐝骇
濮撳悕
涓�銆併�愯鏃剁洰鏍囥�?/p>
1.
鐞嗚В鐭╁舰銆佽彵褰€�佹鏂瑰舰涓庝竴鑸钩琛屽洓杈瑰舰涔嬮棿鐨勫叡鎬с�佺壒鎬у拰浠庡睘鍏崇郴锛?/p>
2
锛庢帰绱㈠苟璇佹槑鐭╁舰銆佽彵褰€�佹鏂瑰舰鐨勬�ц川瀹氱悊浠ュ強瀹冧滑鐨勫垽瀹氬畾鐞嗭紝浼氬埄鐢ㄨ繖浜涙�ц川瀹氱悊涓?/p>
鍒ゅ畾瀹氱悊杩涜璁＄畻涓庢帹鐞嗭紟
浜屻�併�愮煡璇嗘⒊鐞嗐�?/p>
1
锛庣煩褰㈢殑姒傚康銆佹�ц川鍜屽垽瀹氾細
瀹氫箟锛?/p>
鏈変竴涓唴瑙掍负
_______
鐨勫钩琛屽洓杈瑰舰鍙仛鐭╁舰锛?/p>
鐭╁舰鏄壒娈婄殑骞宠鍥涜竟褰紟
鎬ц川锛氱敱浜庣煩褰㈡槸鐗规畩鐨勫钩琛屽洓杈瑰舰锛屾墍浠ュ畠闄や簡鍏锋湁骞宠鍥涜竟褰㈢殑涓�鍒囨�ц川
澶栵紝
杩樺叿鏈変互涓嬫�ц川锛?/p>
鈶犵煩褰㈢殑鍥涗釜瑙掗兘鏄?/p>
_______
锛?/p>
鈶＄煩褰㈢殑瀵硅绾?/p>
________
锛?/p>
鍒ゅ畾锛氣憼鏈変竴涓鏄?/p>
_______
鐨勫钩琛屽洓杈瑰舰鏄煩褰紱鈶″洓涓
_______
鐨勫洓杈瑰舰
鏄煩褰紱鈶㈠瑙掔嚎
_______
鐨勫钩琛屽洓杈瑰舰鏄煩褰紟
2
锛庤彵褰㈢殑姒傚康銆佹�ц川鍜屽垽瀹氾細
瀹氫箟锛氫竴缁勯偦杈?/p>
_______
鐨勫钩琛屽洓杈瑰舰鍙仛鑿卞舰锛岃彵褰㈡槸鐗规畩鐨勫钩琛屽洓杈瑰舰锛?/p>
鎬ц川锛氱敱浜庤彵褰㈡槸鐗规畩鐨勫钩琛屽洓杈瑰舰锛屾墍浠ヨ彵褰㈤櫎浜嗗叿鏈夊钩琛屽洓杈瑰舰鐨勪竴鍒囨�?/p>
璐ㄥ锛岃繕鍏锋湁浠ヤ笅鎬ц川锛氳彵褰㈢殑鍥涙潯杈?/p>
________
锛屼袱鏉″瑙掔嚎
_______
锛屾瘡涓�鏉?/p>
瀵硅绾?/p>
________
锛?/p>
鍒ゅ畾锛氣憼涓�缁勯偦杈?/p>
_______
鐨勫钩琛屽洓杈瑰舰鏄彵褰紱鈶″洓鏉¤竟
_______
鐨勫洓杈瑰舰鏄?/p>
鑿卞舰锛涒憿瀵硅绾?/p>
_______
鐨勫钩琛屽洓杈瑰舰鏄彵褰紟
3
锛庢鏂瑰舰鐨勬蹇点�佹�ц川鍜屽垽瀹氾細
瀹氫箟锛氫竴缁勯偦杈?/p>
_______
鐨勭煩褰㈠彨鍋氭鏂瑰舰锛?/p>
鎬ц川锛氬叿鏈夊钩琛屽洓杈瑰舰銆佺煩褰€�佽彵褰㈢殑涓�鍒囨�ц川锛屽锛氬洓涓閮芥槸
_______
锛涘洓
鏉¤竟閮?/p>
_______
锛涗袱鏉″瑙掔嚎浜掔浉
_______
锛屾瘡涓�鏉″瑙掔嚎
_______
绛夛紟
鍒ゅ畾锛氣憼涓�缁勯偦杈?/p>
_______
涓旀湁涓�涓鏄?/p>
_______
鐨勫钩琛屽洓杈瑰舰鏄鏂瑰舰锛涒憽鏈?/p>
涓�涓鏄?/p>
_______
鐨勮彵褰㈡槸姝ｆ柟褰紱鈶㈡湁涓�缁勯偦杈?/p>
_______
鐨勭煩褰㈡槸姝ｆ柟褰紟
涓夈�併�愯�冪偣渚嬫瀽銆?/p>
鑰冪偣涓�
鐭╁舰鐨勬�ц川鍜屽垽瀹?/p>
1.
濡傚浘锛岀煩褰?/p>
ABCD
涓紝
AC
锛?/p>
BD
鐩镐氦浜庣偣
O
锛岃嫢鈭?/p>
AOD
=120掳锛?/p>
AC
=6
锛屽垯鈻?/p>
ABO
鐨勫懆闀夸负
________
2.
宸茬煡鍥涜竟褰?/p>
ABCD
锛?/p>
AB=CD,AD=BC,
璇蜂綘鍐嶆坊鍔犱竴涓潯浠舵槸鍥涜竟褰?/p>
ABCD
鏄煩褰紝
浣犳坊鍔犵殑鏉′欢鏄?/p>
________
锛堟坊鍔犱竴绉嶅嵆鍙級