弧长C=3.2米弦长L=2.97米弦中心到弧顶H是多少?弧半径为R,弧所对的圆心角为A.Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*RnR0=2R1=2.2716R2=2.3917R3=2.4094R4=2.4097R5=2.4097R=2.4097米A=C/R=3.2/2.4097...