弧长是24.89,弦长是23.49,求半径?急

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弧长是24.89,弦长是23.49,求半径?急弧长是24.89,弦长是23.49,求半径?急弧长是24.89,弦长是23.49,求半径?急弧长是C=24.89,弦长是L=23.49,求半径R?Rn+1

弧长是24.89,弦长是23.49,求半径?急
弧长是24.89,弦长是23.49,求半径?急

弧长是24.89,弦长是23.49,求半径?急
弧长是C=24.89,弦长是L=23.49,求半径R?
Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn
R0=20
R1=21.074
R2=21.236
R3=21.239
R4=21.239
R=21.239