CAD作图,已知弧长为11500,拱高为2000,求弦长,如何用CAD画出来,

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CAD作图,已知弧长为11500,拱高为2000,求弦长,如何用CAD画出来,

已知弧长为C=11500,拱高为H=2000,求弦长L?弧半径为R.Rn+1=(1-(Rn*COS(C/(2*Rn))-Rn+H)/((C/2)*SIN(C/(2*Rn))-H))*Rn R0=8000R1=7905.78R2=7907.8R3=7907.8 R=7907.8 L=(R^2-(R-H)^2)^0.5 =(7907.8^2-(7907.8-2000)...