灏忓崌鍒濆垎鐝�冭瘯妯℃嫙璇曢鍙婄瓟妗堬紙浜屽崄锛?/p>
1.
钁楀悕鐨勬暟瀛﹀鏂拏鑺?/p>
飩?/p>
宸寸撼璧簬
1945
骞?/p>
8
鏈?/p>
31
鏃ュ幓涓栵紝浠栧湪涓栨椂鐨勬煇骞寸殑骞撮緞鎭板ソ鏄骞?/p>
浠界殑绠楁湳骞虫柟鏍?/p>
(
璇ュ勾鐨勫勾浠芥槸浠栬骞村勾榫勭殑骞虫柟鏁?/p>
).
鍒欎粬鍑虹敓鐨勫勾浠芥槸
_____
锛屼粬鍘?/p>
涓栨椂鐨勫勾榫勬槸
______ .
銆愮瓟妗堛�?/p>
1892
骞?/p>
;53
宀併�?/p>
銆愯В銆?/p>
棣栧厛鎵惧嚭鍦ㄥ皬浜?/p>
1945
锛屽ぇ浜?/p>
1845
鐨勫畬鍏ㄥ钩鏂规暟锛屾湁
1936
锛?/p>
44
2
锛?/p>
1849
锛?/p>
43
2
锛屾樉鐒跺彧
鏈?/p>
1936
绗﹀悎瀹為檯锛屾墍浠ユ柉钂傝姮
飩?/p>
宸寸撼璧湪
1936
骞翠负
44
宀侊紟
閭ｄ箞浠栧嚭鐢熺殑骞翠唤涓?/p>
1936
锛?/p>
44
锛?/p>
1892
骞达紟
浠栧幓涓栫殑骞撮緞涓?/p>
1945
锛?/p>
1892
锛?/p>
53
宀侊紟
銆愭彁绀恒�戣鐐规槸锛氱‘瀹氳寖鍥达紝鍙﹀瑕佹敞鎰忕殑
鈥?/p>
娼滃彴璇?/p>
鈥?/p>
锛氬勾浠戒笌鐩稿簲骞撮緞瀵瑰簲锛屽垯鏈夊勾浠斤紞
骞撮緞锛濆嚭鐢熷勾浠姐�?/p>
2.
鏌愬皬瀛﹀嵆灏嗗紑杩愬姩浼氾紝涓�鍏辨湁鍗侀」姣旇禌锛屾瘡浣嶅悓瀛﹀彲浠ヤ换鎶ヤ袱椤癸紝閭ｄ箞瑕佹湁
___
浜烘姤
鍚嶅弬鍔犺繍鍔ㄤ細锛屾墠鑳戒繚璇佹湁涓ゅ悕鎴栦袱鍚嶄互涓婄殑鍚屽鎶ュ悕鍙傚姞鐨勬瘮璧涢」鐩浉鍚?/p>
.
銆愮瓟妗堛�?/p>
46
銆愯В銆?/p>
鍗侀」姣旇禌锛屾瘡浣嶅悓瀛﹀彲浠ヤ换鎶ヤ袱椤癸紝閭ｄ箞鏈?/p>
2
10
C
锛?/p>
45
绉嶄笉鍚岀殑鎶ュ悕鏂规硶锛?/p>
閭ｄ箞锛岀敱鎶藉眽鍘熺悊鐭ヤ负
45+1
锛?/p>
46
浜烘姤鍚嶆椂婊¤冻棰樻剰锛?/p>
3.
4.
濡傚浘锛?/p>
ABCD
鏄煩褰紝
BC=6cm
锛?/p>
AB=10cm
锛?/p>
AC
鍜?/p>
BD
鏄瑙掔嚎锛屽浘涓殑闃村奖閮ㄥ垎浠?/p>
CD
涓鸿酱鏃嬭浆涓�鍛紝鍒欓槾褰遍儴鍒嗘壂杩囩殑绔嬩綋鐨勪綋绉槸澶氬皯绔嬫柟鍘樼背锛燂紙
蟺
=3.14
锛?/p>
銆愮瓟妗堛�?/p>
565.2
绔嬫柟鍘樼背
銆愯В銆戣涓夎褰?/p>
BOC
浠?/p>
CD
涓鸿酱鏃嬭浆涓�鍛ㄦ墍寰楀埌鐨勭珛浣撶殑浣撶Н鏄?/p>
S
锛?/p>
S
绛変簬楂樹负
10
鍘樼背锛屽簳闈?/p>
鍗婂緞鏄?/p>
6
鍘樼背鐨勫渾閿ョ殑浣撶Н鍑忓幓
2
涓珮涓?/p>
5
鍘樼背锛屽簳闈㈠崐寰勬槸
3
鍘樼背鐨勫渾閿ョ殑浣撶Н鍑忓幓
2
涓珮涓?/p>
5
鍘樼背锛屽簳闈㈠崐寰勬槸
3
鍘樼背鐨勫渾閿ョ殑浣撶Н銆傚嵆锛?/p>
S=
1
3
脳
6
2
脳
10
脳
蟺
-2
脳
1
3
脳
3
2
脳
5
脳
蟺
=90
蟺
锛?/p>
2S=180
蟺
=565.2
锛堢珛鏂瑰帢绫筹級
銆愭彁绀恒�?/p>
S
涔熷彲浠ョ湅鍋氫竴涓珮涓?/p>
5
鍘樼背锛屼笂銆佷笅搴曢潰鍗婂緞鏄?/p>
3
銆?/p>
6
鍘樼背鐨勫渾鍙扮殑浣撶Н鍑忓幓涓�涓?/p>
楂樹负
5
鍘樼背锛屽簳闈㈠崐寰勬槸
3
鍘樼背鐨勫渾閿ョ殑浣撶Н銆?/p>
5.
濡傚浘锛岀偣
B
鏄嚎娈?/p>
AD
鐨勪腑鐐癸紝鐢?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
鍥涗釜鐐规墍鏋勬垚鐨勬墍鏈夌嚎娈电殑闀垮害鍧囦负鏁存暟锛?/p>
鑻ヨ繖浜涚嚎娈电殑闀垮害鐨勭Н涓?/p>
10500
锛屽垯绾挎
AB
鐨勯暱搴︽槸
銆?/p>
