圆锥形求母线长的公式是甚么？ 圆锥母线的长的公式
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\u2235\u5f27AB=\u2299O\u7684\u5468\u957f
\u2234\u5f27AB=\u03c0d
\u2235\u5f27AB=2\u03c0a(\u22201/360\u00b0)
\u22342\u03c0a(\u22201/360\u00b0)=\u03c0d
\u22342a(\u22201/360\u00b0)=d
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绛旓細锛堝渾閿ョ殑姣嶇嚎锛²=锛堝渾閿ョ殑楂橈級²+锛堝渾閿ョ殑搴曢潰鍦嗙殑鍗婂緞锛²鍦嗛敟姣嶇嚎锛圙eneratrix锛夋槸鏈夊叧鍦嗛敟璁＄畻涓庣爺绌跺叾鎬ц川鐨勯噸瑕佹蹇点傞氫織鍦拌锛屼竴涓洿鍦嗛敟姣嶇嚎灏辨槸鍥存垚姝ゅ渾閿ユ墍鐢ㄦ墖褰㈢殑鍗婂緞銆傚渾閿ユ槸涓绉嶅嚑浣曞浘褰紝鏈変袱绉嶅畾涔夈傝В鏋愬嚑浣曞畾涔夛細鍦嗛敟闈㈠拰涓涓埅瀹冪殑骞抽潰锛堟弧瓒充氦绾夸负鍦嗭級缁勬垚鐨勭┖闂...
绛旓細鎵浠ヨ繍鐢ㄥ嬀鑲″畾鐞嗭紝寰楋紙鍦嗛敟鐨勬瘝绾锛²=锛堝渾閿ョ殑楂橈級²+锛堝渾閿ョ殑搴曢潰鍦嗙殑鍗婂緞锛²
绛旓細姣嶇嚎L銆侀珮H銆佸崐寰凴 锛歀^2=H^2+R^2 鐩村渾閿ョ殑涓昏鍥炬槸涓涓瓑鑵颁笁瑙掑舰锛屼笁瑙掑舰鐨勮叞鏄繖涓洿鍦嗛敟鐨勬瘝绾裤傚洿鎴愮洿鍦嗛敟鎵鐢ㄦ墖褰㈢殑鍗婂緞鍙仛鍦嗛敟姣嶇嚎銆備换浣曞渾閿ョ殑椤剁偣鍒板簳闈㈠渾鍛ㄤ笂浠绘剰涓鐐圭殑绾挎鍙仛鍦嗛敟姣嶇嚎銆傚瀭鐩翠簬杞寸殑杈规棆杞屾垚鐨勬洸闈㈠彨鍋氬渾閿ョ殑搴曢潰銆備笉鍨傜洿浜庤酱鐨勮竟鏃嬭浆鑰屾垚鐨勬洸闈㈠彨鍋氬渾閿ョ殑渚ч潰銆傛棤...
绛旓細L^2=r^2+h^2;
绛旓細寰堢畝鍗曠殑 棣栧厛鍦嗛敟鐨勫睍寮鍥炬槸鎵囧舰鍜屽渾褰紝閭ｄ箞鍦嗛敟鐨勬瘝绾垮氨鏄墖褰㈢殑鍗婂緞 鎵囧舰鐨勯潰绉=1/2 L(搴曢潰鍦嗗舰鐨勫懆闀匡級*r锛堟墖褰㈢殑鍗婂緞鍗冲渾閿ョ殑姣嶇嚎锛変唬鎹竴涓 r= 鎵囧舰鐨勯潰绉 /(L*1/2)鎴栧埄鐢ㄦ墖褰㈢殑鍛ㄩ暱鍏紡 鍛ㄩ暱 = n锛堝渾蹇冭鐨勫害鏁帮級*r锛堟墖褰㈢殑鍗婂緞鍗冲渾閿ョ殑姣嶇嚎锛壪/180 涔熷彲浠ユ眰鍑烘瘝绾跨殑闀 鐭ラ亾姣嶇嚎...
绛旓細锛堝渾閿ai鐨勬瘝绾匡級²=锛鍦嗛敟鐨楂橈級²+锛堝渾閿ョ殑搴曢潰du鍦嗙殑鍗婂緞锛²鍦嗛敟姣嶇嚎锛圙eneratrix锛夋槸鏈夊叧鍦嗛敟璁＄畻涓庣爺绌跺叾鎬ц川鐨勯噸瑕佹蹇点傞氫織鍦拌锛屼竴涓洿鍦嗛敟姣嶇嚎灏辨槸鍥存垚姝ゅ渾閿ユ墍鐢ㄦ墖褰㈢殑鍗婂緞銆傚渾閿ョ殑灞曞紑鍥炬槸涓涓墖褰紝姣嶇嚎灏辨槸杩欎釜鎵囧舰鐨勫崐寰勩傚渾閿ョ殑琛ㄩ潰绉敱杩欎釜鎵囧舰鐨勯潰绉紙鍦嗛敟渚ч潰绉...
绛旓細姣嶇嚎闀垮叕寮锛歀=n蟺r/180銆傚叾涓璶涓哄渾閿ラ《瑙掑害鏁帮紝r涓哄簳闈㈠崐寰勶紝L鍒欎负姣嶇嚎闀裤傛瘝绾块暱鎸鐨勬槸鍦嗛敟鐨椤惰鎴栧簳鐐瑰埌鍦嗛敟鐨勫簳闈㈠渾鍛ㄤ笂浠绘剰涓鐐圭殑绾挎鐨勯暱銆姣嶇嚎闀挎槸鍦嗛敟椤剁偣鍒板簳闈㈠渾鍛ㄤ笂鐨勪换鎰忎竴鐐圭殑璺濈銆傚渾閿ョ殑灞曞紑鍥炬槸涓涓墖褰紝姣嶇嚎灏辨槸杩欎釜鎵囧舰鐨勫崐寰勶紝鍦嗛敟鐨勮〃闈㈢Н鐢辫繖涓墖褰㈢殑闈㈢Н锛堝渾閿ヤ晶闈㈢Н锛夊拰涓...
绛旓細鍦ㄤ竴涓鍦嗛敟涓紝杩炴帴閿ュ皷鍜屽簳闈㈠渾蹇冪殑绾挎涓庢瘝绾挎槸鍨傜洿鐨勩傝繖鏉″瀭鐩寸嚎娈靛皢鍦嗛敟鍒嗘垚涓や釜閮ㄥ垎锛氫竴涓皬鐨閿ュ舰鍜屼竴涓埅鐥曚笁瑙掑舰銆傝屾瘝绾垮氨鏄敟灏栧埌鎴棔涓夎褰㈢殑杈归暱銆傛牴鎹嬀鑲″畾鐞嗭紝鍨傜洿绾挎鐨勯暱搴︾瓑浜庡簳闈㈠崐寰勭殑骞虫柟鍔犱笂姣嶇嚎鐨勫钩鏂广傛墍浠ユ垜浠彲浠ュ緱鍒板涓嬬殑鍏崇郴锛姣嶇嚎闀^2 = 搴曢潰鍗婂緞^2 + 楂樺害^2 鍏...
绛旓細鍦嗛敟姣嶇嚎闀跨殑璁＄畻鍏紡锛氭瘝绾=锛鍦嗛敟鐨楂橈級bai²+锛堝渾閿ョ殑搴曢潰du鍦嗙殑鍗婂緞锛²銆傜珛浣撳嚑浣曞畾涔夛細浠ョ洿瑙掍笁瑙掑舰鐨勭洿瑙掕竟鎵鍦ㄧ洿绾夸负鏃嬭浆杞达紝鍏朵綑涓よ竟鏃嬭浆360搴﹁屾垚鐨勬洸闈㈡墍鍥存垚鐨勫嚑浣曚綋鍙仛鍦嗛敟銆傛棆杞酱鍙仛鍦嗛敟鐨勮酱銆傜洿瑙掍笁瑙掑舰鏄竴涓嚑浣曞浘褰紝鏄湁涓涓涓虹洿瑙掔殑涓夎褰紝鏈夋櫘閫氱殑鐩磋涓夎褰㈠拰...
绛旓細锛鍦嗛敟鐨勬瘝绾锛²=锛堝渾閿ョ殑楂橈級²+锛堝渾閿ョ殑搴曢潰鍦嗙殑鍗婂緞锛²銆鍦嗛敟姣嶇嚎锛圙eneratrix锛夋槸鏈夊叧鍦嗛敟璁＄畻涓庣爺绌跺叾鎬ц川鐨勯噸瑕佹蹇点傞氫織鍦拌锛屼竴涓洿鍦嗛敟姣嶇嚎灏辨槸鍥存垚姝ゅ渾閿ユ墍鐢ㄦ墖褰㈢殑鍗婂緞銆傚畾涔夛細瀹氫箟1锛氱洿鍦嗛敟鐨勪富瑙嗗浘鏄竴涓瓑鑵颁笁瑙掑舰锛屼笁瑙掑舰鐨勮叞鏄繖涓洿鍦嗛敟鐨勬瘝绾裤傚畾涔2锛氬洿鎴愮洿...
