ylp7986
幼苗
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已知弧长C=2700MM,圆心角为A=10°,求拱高H?
弧半径为R.
A=10°=10°*π/180°=0.174533弧度
R=C/A=2700/0.174533=15469.86mm
H=R-R*COS(A/2)
=15469.86-15469.86*COS(10/2)
=58.87mm
已知弧长C=2700MM,半径R=15477MM,求拱高H?
弧所对的圆心角为A.
A=C/R=2700/15477=0.174452弧度=0.174452*180/π=9.995度
H=R-R*COS(A/2)
=15477-15477*COS(9.995/2)
=58.84mm
已知圆心角为A=10°,半径R=15477MM,求拱高H?
H=R-R*COS(A/2)
=15477-15477*COS(10°/2)
=58.895mm
1年前
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