Question

已知,在一个一个圆中,弧长5.79614,弦长5.3306,求该圆半径

Answer 1

在一个一个圆中,弧长C=5.79614,弦长L=5.3306,求该圆半径R?

Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn

R0=4

R1=4.114732

R2=4.123376

R3=4.123421

R4=4.123421

R=4.123421