Question

圆弧求直径圆弧弦长40.1 圆弧顶距弦29 求圆的直径

Answer 1

设圆半径为R

R^2=(40.1/2)^2+(R-29)^2

58R=(40.1/2)^2+29^2

2R=[(40.1/2)^2+29^2]/29=42.86215517

圆的直径=42.9