弧长400,弦长270,求弓高!

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 20:16:58
弧长400,弦长270,求弓高!
xj@_1$'̜\4B]$`P)s"F..KVJO..LU[t|q袆ߙoIvvvs;Nj.(i5:wiTz޼4Vu>@EeU餉܇NFSY9=A]c 5Xcm %!OrJYa:mAIA6 I4@YU[uټ _w! )tڷB!qb(ׅtg4Pы^_h1{Dd/{ǯ !㬗>|2Eh<̗L |3# AxY:EP|'HQSb:

弧长400,弦长270,求弓高!
弧长400,弦长270,求弓高!

弧长400,弦长270,求弓高!
弧长C=400,弦长L=270,求弓高H?
弧半径为R.
Rn+1=(1+(L-2*Rn*SIN(C/(2*Rn)))/(L-C*COS(C/(2*Rn))))*Rn
R0=143
R1=134.6453
R2=135.6106
R3=135.6266
R4=135.6266
R=135.6266
H=R-(R^2-(L/2)^2)^0.5
=135.6226-(135.6226^2-(270/2)^2)^0.5
=122.642