已知弧长6,求弦长?圆弧长6米,拱高0.2米,求弦长和半径弧长C=6米,拱高H=0.2米,求弦长L?弧半径为R,弧所对的圆心角为A.Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*RnR0=22R1=22.448R2=22.467R3=22.467R=22.467米
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![已知弧长6,求弦长?圆弧长6米,拱高0.2米,求弦长和半径弧长C=6米,拱高H=0.2米,求弦长L?弧半径为R,弧所对的圆心角为A.Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*RnR0=22R1=22.448R2=22.467R3=22.467R=22.467米](/uploads/image/z/15236399-47-9.jpg?t=%E5%B7%B2%E7%9F%A5%E5%BC%A7%E9%95%BF6%2C%E6%B1%82%E5%BC%A6%E9%95%BF%3F%E5%9C%86%E5%BC%A7%E9%95%BF6%E7%B1%B3%2C%E6%8B%B1%E9%AB%980.2%E7%B1%B3%2C%E6%B1%82%E5%BC%A6%E9%95%BF%E5%92%8C%E5%8D%8A%E5%BE%84%E5%BC%A7%E9%95%BFC%3D6%E7%B1%B3%2C%E6%8B%B1%E9%AB%98H%3D0.2%E7%B1%B3%2C%E6%B1%82%E5%BC%A6%E9%95%BFL%3F%E5%BC%A7%E5%8D%8A%E5%BE%84%E4%B8%BAR%2C%E5%BC%A7%E6%89%80%E5%AF%B9%E7%9A%84%E5%9C%86%E5%BF%83%E8%A7%92%E4%B8%BAA.Rn%2B1%3D%281-%28Rn%2ACOS%28C%2F%282%2ARn%29%29-Rn%2BH%29%2F%28%28C%2F2%29%2ASIN%28C%2F%282%2ARn%29%29-H%29%29%2ARnR0%3D22R1%3D22.448R2%3D22.467R3%3D22.467R%3D22.467%E7%B1%B3)
已知弧长6,求弦长?圆弧长6米,拱高0.2米,求弦长和半径弧长C=6米,拱高H=0.2米,求弦长L?弧半径为R,弧所对的圆心角为A.Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*RnR0=22R1=22.448R2=22.467R3=22.467R=22.467米
已知弧长6,求弦长?
圆弧长6米,拱高0.2米,求弦长和半径
弧长C=6米,拱高H=0.2米,求弦长L?
弧半径为R,弧所对的圆心角为A.
Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*Rn
R0=22
R1=22.448
R2=22.467
R3=22.467
R=22.467米
A=C/R=6/22.467=0.267058弧度=0.267058*180/PI=15.3度
L=2*R*SIN(A/2)
=2*22.467*SIN(15.3/2)
=5.982米
注意注意,我需要的是弧长6,求弦长.类似上面的,只是拱高0.2换成1了,可惜那个公式我不会算.
已知弧长6,求弦长?圆弧长6米,拱高0.2米,求弦长和半径弧长C=6米,拱高H=0.2米,求弦长L?弧半径为R,弧所对的圆心角为A.Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*RnR0=22R1=22.448R2=22.467R3=22.467R=22.467米
弧长C=6,拱高H=1,求弦长L?
弧半径为R,弧所对的圆心角为A.
Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*Rn
R0=4
R1=4.28
R2=4.321
R3=4.322
R4=4.322
R=4.322
A=C/R=6/4.322=1.388246弧度=1.388246*180/π=79.54度
L=2*R*SIN(A/2)
=2*4.322*SIN(79.54/2)
=5.5297