已知扇形的半径是R=5.24 弦长是L=6.36 求扇形的弧长C和圆心角A?
A=2*ARC SIN((L/2)/R)
=2*ARC SIN((6.36/2)/5.24)
=74.727度
=74.727*PI/180
=1.304234弧度
C=R*A=5.24*1.304234=6.834
已知扇形的半径是R=5.24 弦长是L=6.36 求扇形的弧长C和圆心角A?
A=2*ARC SIN((L/2)/R)
=2*ARC SIN((6.36/2)/5.24)
=74.727度
=74.727*PI/180
=1.304234弧度
C=R*A=5.24*1.304234=6.834