已者灶知搭嫌敬一条弧的弦长是L=896,弧到弦的中心是H=96,请问这个圆知慎的半径R是多少?
R^2=(R-H)^2+(L/2)^2
R^2=R^2-2*R*H+H^2+L^2/4
2*R*H=H^2+L^2/4
R=H/2+L^2/(8*H)
=96/2+896^2/(8*96)
=1093.33
R^2=(弦AB/2)^2+(R-h)^2
R^2=(896/2)^2+(R-96)^2
R^2=448^2+R^2-2*96R+96*96
2*96R=448^2+96*96
R=1093.33
1093.33