长度L=7米,中心高度H=0.66米,求圆的半径R怎么求?
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)
=0.66/2+7^2/(8*0.66)
=9.61米
长度L=7米,中心高度H=0.66米,求圆的半径R怎么求?
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)
=0.66/2+7^2/(8*0.66)
=9.61米