已知圆弧跨度为L=8.1m,角度为A=115度,求圆弧的弧长C?
弧半径为R.
R=(L/2)/SIN(A/2)
=(8.1/2)/SIN(115/2)
=4.802m
A=115度=115*PI/180=2.00713弧度
C=R*A=4.802*2.00713=9.638m
已知圆弧跨度为L=8.1m,角度为A=115度,求圆弧的弧长C?
弧半径为R.
R=(L/2)/SIN(A/2)
=(8.1/2)/SIN(115/2)
=4.802m
A=115度=115*PI/180=2.00713弧度
C=R*A=4.802*2.00713=9.638m