所有关于圆的公式
\u5706\u7684\u6240\u6709\u516c\u5f0f\u5468\u957f\uff1aC=2\u03c0r \uff08r\u534a\u5f84\uff09
\u9762\u79ef\uff1aS=\u03c0r²
\u534a\u5706\u5468\u957f\uff1aC=\u03c0r+2r
\u534a\u5706\u9762\u79ef\uff1aS=\u03c0r²/2
\u6269\u5c55\u8d44\u6599\uff1a
\u5706\u5f62\u9762\u79ef
\u7f16\u8f91
\u5706\u7684\u534a\u5f84\uff1ar
\u76f4\u5f84\uff1ad
\u5706\u5468\u7387\uff1a\u03c0\uff08\u6570\u503c\u4e3a3.1415926\u81f33.1415927\u4e4b\u95f4\u2026\u2026\u65e0\u9650\u4e0d\u5faa\u73af\u5c0f\u6570\uff09\uff0c\u901a\u5e38\u91c7\u75283.14\u4f5c\u4e3a\u03c0\u7684\u6570\u503c
\u5706\u9762\u79ef\uff1a
\u5706\u9762\u79ef=\u5706\u5468\u7387\u00d7\u534a\u5f84\u00d7\u534a\u5f84
\u534a\u5706\u7684\u9762\u79ef\uff1aS\u534a\u5706=(\u03c0r2)\u00f72
\u534a\u5706\u7684\u9762\u79ef=\u5706\u5468\u7387\u00d7\u534a\u5f84\u00d7\u534a\u5f84\u00f72
\u5706\u73af\u9762\u79ef\uff1a S\u5927\u5706\uff0dS\u5c0f\u5706=\u03c0(R2-r2)\uff08R\u4e3a\u5927\u5706\u534a\u5f84\uff0cr\u4e3a\u5c0f\u5706\u534a\u5f84\uff09
\u5706\u73af\u9762\u79ef=\u5916\u5927\u5706\u9762\u79ef\uff0d\u5185\u5c0f\u5706\u9762\u79ef
\u5706\u7684\u5468\u957f\uff1a
\u6216
\u5706\u7684\u5468\u957f=\u76f4\u5f84\u00d7\u5706\u5468\u7387
\u534a\u5706\u7684\u5468\u957f\uff1a
\u6216\u8005
\u534a\u5706\u5468\u957f=\u5706\u5468\u7387\u00d7\u534a\u5f84+\u76f4\u5f84
圆的一般方程式：x^2+y^2+2gx+2fy+c=0 || 圆心为(-g,-f) || 半径r=根号下(g^2+f^2-c)
圆的面积公式圆周率乘以半径的平方 圆的周长公式2乘以圆周率乘以半径
绛旓細鍦嗙殑鎵鏈夊叕寮忓涓嬶細鍦嗙殑鍛ㄩ暱锛欳=2蟺r鎴朿=蟺d銆傚渾鐨勯潰绉細s=蟺R²锛坰鏄潰绉紝蟺鏄渾鍛ㄧ巼鈮3.14锛孯²鏄崐寰勭殑骞虫柟锛夈傚崐鍦嗙殑鍛ㄩ暱锛歞+(蟺d)/2鎴栬卍+蟺r銆鍗婂渾鐨勯潰绉細S鍗婂渾=(蟺r^2;)/2銆傚渾鐜潰绉細 S澶у渾-S灏忓渾=蟺(R^2-r^2) (R涓哄ぇ鍦嗗崐寰勶紝r涓哄皬鍦嗗崐寰)銆傛帹瀵艰繃绋嬶細...
绛旓細浜.鍛ㄩ暱鍏紡锛氬渾鐨勫懆闀匡細C=2蟺r鎴朇=蟺d銆備笁.鍦嗙殑鏂圭▼锛1銆佸渾鐨勬爣鍑嗘柟绋嬶細鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝浠ョ偣O锛坅锛宐锛変负鍦嗗績锛屼互r涓哄崐寰勭殑鍦嗙殑鏍囧噯鏂圭▼鏄紙x-a锛塣2+锛坹-b锛塣2=r^2銆傜壒鍒湴锛屼互鍘熺偣涓哄渾蹇冿紝鍗婂緞涓簉锛坮>0锛夌殑鍦嗙殑鏍囧噯鏂圭▼涓簒^2+y^2=r^2銆2銆佸渾鐨勪竴鑸柟绋嬶細鏂圭▼x^2+y^...
绛旓細涓庡渾鐩稿叧鐨勫叕寮忥細1銆佸渾闈㈢Н锛歋=蟺r²锛孲=蟺(d/2)²銆傦紙d涓虹洿寰勶紝r涓哄崐寰勶級銆2銆鍗婂渾鐨勯潰绉細S鍗婂渾=(蟺r^2)/2銆傦紙r涓哄崐寰勶級銆3銆佸渾鐜潰绉細S澶у渾-S灏忓渾=蟺(R^2-r^2)(R涓哄ぇ鍦嗗崐寰勶紝r涓哄皬鍦嗗崐寰)銆4銆佸渾鐨勫懆闀匡細C=2蟺r鎴朿=蟺d銆傦紙d涓虹洿寰勶紝r涓哄崐寰勶級銆5銆佸崐鍦嗙殑鍛...
绛旓細涓銆佸懆闀垮叕寮 1銆佸渾鐨勫懆闀 锛欳=2蟺r 锛坮锛氬崐寰勶級2銆佸崐鍦嗗懆闀匡細C=蟺r+2r 浜屻佸渾鐨勯潰绉 1銆侀潰绉細S=蟺r²2銆佸崐鍦嗛潰绉細S=蟺r²/2 涓夈佸姬闀胯搴﹀叕寮 1銆佹墖褰㈠姬闀匡細L=鍦嗗績瑙掞紙寮у害鍒讹級脳R= n蟺R/180锛埼镐负鍦嗗績瑙掞級锛圧涓烘墖褰㈠崐寰勶級2銆佹墖褰㈤潰绉細S=n蟺 R²/360=LR/...
绛旓細1.鍦嗙殑鍛ㄩ暱C=2蟺r=蟺d 2.鍦嗙殑闈㈢НS=蟺r²3.鎵囧舰寮ч暱l=n蟺r/180 4.鎵囧舰闈㈢НS=n蟺r²/360=rl/2 5.鍦嗛敟渚ч潰绉疭=蟺rl 銆栧渾鐨勫畾涔夈楀嚑浣曡锛氬钩闈笂鍒板畾鐐圭殑璺濈绛変簬瀹氶暱鐨勬墍鏈夌偣缁勬垚鐨勫浘褰㈠彨鍋氬渾銆傚畾鐐圭О涓哄渾蹇冿紝瀹氶暱绉颁负鍗婂緞銆傝建杩硅锛氬钩闈笂涓鍔ㄧ偣浠ヤ竴瀹氱偣涓轰腑蹇冿紝涓瀹氶暱涓...
绛旓細鍦嗗叕寮忓叏閮細1銆佸渾闈㈢Н锛歋=蟺r锛孲=蟺(d/2)锛坉涓虹洿寰勶紝r涓哄崐寰勶級銆2銆鍗婂渾鐨勯潰绉細S鍗婂渾=(蟺r^2)/2銆3銆佸渾鐨勫懆闀匡細C=2蟺r鎴朿=蟺d銆4銆佸崐鍦嗙殑鍛ㄩ暱锛歞+(蟺d)/2鎴栬卍+蟺r銆5銆佹墖褰㈡墍鍦ㄥ渾鐨勯潰绉櫎浠360鍐嶄箻浠ユ墖褰㈠渾蹇冭鐨勮搴锛歋=n/360脳蟺r銆傛ц川锛氬湪涓涓钩闈㈠唴锛屽洿缁曚竴涓偣骞...
绛旓細鍏充簬鍦嗙殑鍏紡鏈夛細1銆佸渾鐨勫懆闀垮叕寮忥細C=2蟺r锛坮鍗婂緞锛夛紱鍗婂渾鐨勫懆闀 c=蟺r+2r銆2銆佸渾鐨勯潰绉叕寮忥細S=蟺r²銆3銆佸崐鍦嗙殑鍛ㄩ暱鍏紡锛欳=蟺r+2r銆4銆佸崐鍦嗙殑闈㈢Н鍏紡锛歋=蟺r²/2銆5銆佸渾鐨勬爣鍑嗘柟绋嬶細鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝浠ョ偣O锛坅,b锛変负鍦嗗績锛屼互r涓哄崐寰勭殑鍦嗙殑鏍囧噯鏂圭▼鏄(x-a)&#...
绛旓細鍦嗙殑鍏紡1.鍦嗙殑鍛ㄩ暱C=2蟺r=蟺d 2.鍦嗙殑闈㈢НS=蟺r² 3.鎵囧舰寮ч暱l=n蟺r/180 4.鎵囧舰闈㈢НS=n蟺r²/360=rl/2 5.鍦嗛敟渚ч潰绉疭=蟺rl 鍑犱綍璇达細骞抽潰涓婂埌瀹氱偣鐨勮窛绂荤瓑浜庡畾闀跨殑鎵鏈夌偣缁勬垚鐨勫浘褰㈠彨鍋氬渾銆傚畾鐐圭О涓哄渾蹇冿紝瀹氶暱绉颁负鍗婂緞銆傝建杩硅锛氬钩闈笂涓鍔ㄧ偣浠ヤ竴瀹氱偣涓轰腑蹇冿紝涓瀹氶暱涓鸿窛绂...
绛旓細1銆鍦嗙殑闈㈢Н锛歋 = 蟺r² 鎴 S = 蟺(d/2)²锛堝叾涓璬浠ｈ〃鐩村緞锛宺浠ｈ〃鍗婂緞锛夈2銆佸崐鍦嗙殑闈㈢Н锛歋鍗婂渾 = (蟺r²)/2銆3銆佸渾鐨勫懆闀匡細C = 2蟺r 鎴 C = 蟺d銆4銆佸崐鍦嗙殑鍛ㄩ暱锛欳鍗婂渾 = d + (蟺d)/2 鎴 C鍗婂渾 = d + 蟺r銆5銆佹墖褰㈢殑闈㈢Н锛歋 = (n/360)蟺r&#...
绛旓細鍦嗙殑鍛ㄩ暱锛 c=2蟺r=蟺d 鍗婂渾鐨勫懆闀匡細c=蟺r+2r 鍦嗛潰绉細S=蟺r²鍗婂渾鐨勯潰绉細S=(蟺r²)梅2 鍦嗙幆闈㈢Н锛 S澶у渾锛峉灏忓渾=蟺(R²-r²)锛圧澶у渾鍗婂緞锛夊崐鍦嗗懆闀=蟺脳r+d 娉細鍦嗙殑鍗婂緞锛歳 鐩村緞锛歞 鍦嗗懆鐜囷細蟺锛3.1415926鈥︹︼級...
