弦长拱高弧长计算器下载

鲍波怨3577己知弦长3340cm拱高210cm求弧长 -
苍郑虽15922464302 ______ 知道拱高H=210cm,拱长L=3340cm,求拱弧长C多少?弧半径为R,弧所对的圆心角为A.R^2=(R-H)^2+(L/2)^2 R^2=R^2-2*R*H+H^2+L^2/42*R*H=H^2+L^2/4 R=H/2+L^2/(8*H) =210/2+3340^2/(8*210) =6745.24cm A=2*ARC SIN((L/2)/R) =2*ARC SIN((3340/2)/6745.24) =28.669度 C=π*R*A/180=π*6745.24*28.669/180=3375.1cm

鲍波怨3577已知弦长7.42m和7.58m,拱高1m,求弧长!! -
苍郑虽15922464302 ______ 设半径=R(R-1)^2+(7.42/2)^2=R^2=>R=7.382 弧度=2arcsin(7.42/2/7.382)~=1.053 弧长=弧度*半径~=7.77 另外一个可以用类似办法.

鲍波怨3577弦长50米拱高15米求弧长 -
苍郑虽15922464302 ______ 设⊙O中,弦AB长15米拱高CD为2米,连结OA,OC则AC=1/2*15=7.5米,且OCD共线,OC⊥AB设OA=OD=r米,则OC=r-2米在Rt△AOC中可得r²=7.5²+(r-2)²解得r=15.0625米又sin∠AOC=7.5/15.0625≈0.4979∴∠AOC≈29.86°∴∠AOB=59.72°弧AB的长=59.72*3.1416*15.0625/180≈15.6998米请复核数字计算!

鲍波怨3577弧长计算(拱形).已知:弦长2700mm,高300mm,求弦长?
苍郑虽15922464302 ______ 已知:弦长L=2700mm,高H=300mm,求弧长C? 弧半径为R,弧所对的圆心角为A. 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) =300/2+2700^2/(8*300) =3187.5,, A=2*ARC SIN((L/2)/R) =2*ARC SIN((2700/2)/3187.5) =50.115度 =50.115*PI/180 =0.874676弧度 C=R*A=3187.5*0.874676=2788.03mm

鲍波怨3577弦长为3.27米,拱高为30厘米,求弧长 -
苍郑虽15922464302 ______ 设半径为x米,圆心角a x²-(x-0.3)²=(3.27/2)² x=4.6 cosa=(4.6²+4.6²-3.27²)/(2*4.6*4.6)=0.7532 a=41.13度 弧长=圆周长*41.13/360=2*3.14*4.6*41.13/360=3.3米

鲍波怨3577弦长28.65 拱高1.9 求弧长是多少? -
苍郑虽15922464302 ______ 弦长L=28.65 拱高H=1.9 求弧长C是多少?弧半径为R,弧所对的圆心角为A.R^2=(R-H)^2+(L/2)^2 R^2=R^2-2*R*H+H^2+L^2/42*R*H=H^2+L^2/4 R=H/2+L^2/(8*H) =1.9/2+28.65^2/(8*1.9) =54.9515 A=2*ARC SIN((L/2)/R)=2*ARC SIN((28.65/2)/54.9515)=30.221度 C=π*R*A/180=π*54.9515*30.221/180=28.9848

鲍波怨3577弧弦长ACL=800厘米,拱高BOH=100,求弧长c -
苍郑虽15922464302 ______ 弦长L=800厘米,拱高H=100,求弧长C?弧半径为R,弧所对的圆心角为A.R^2=(R-H)^2+(L/2)^2 R^2=R^2-2*R*H+H^2+L^2/42*R*H=H^2+L^2/4 R=H/2+L^2/(8*H) =100/2+800^2/(8*100) =850厘米 A=2*ARC SIN((L/2)/R) =2*ARC SIN((800/2)/850) =56.145度 C=PI*R*A/180=PI*850*56.145/180=832.9厘米

鲍波怨3577已知弦长L=47.9米,拱高H=2.6米,求弧长C?
苍郑虽15922464302 ______ 21.7 弧长=2*(半弦长^2-拱高^2)^0.5

鲍波怨3577弧长的计算弦长20米,拱高3米,求弧长多少米?
苍郑虽15922464302 ______ 设弧所在的圆的半径为R,则: (R-拱高)^2+(弦长/2)^2=R^2 代人数值,得: (R-3)^2+10^2=R^2 整理,得:6R=109,R=109/6 设弧所对的圆心角为α α=2arcsin[(弦长/2)/R] =2arcsin(60/109) ≈66.8° 弧长=2πR*α/360° =109*πR*arcsin(60/109)/540° ≈21.18(米)

鲍波怨3577请问知道弯钢玻璃弦长,高度,拱高,半径怎么算出弧长?请帮我计算这些尺寸弦长1285,高度1432,拱高43,半径4822计算弧长?列出计算过程. -
苍郑虽15922464302 ______[答案] 弦心距D=半径R-拱高H=4779半弦长L=√(R?-D?)=642.53半弧角α=arcsin(L/R)=7.6574°全弧角=2α弧长=2πR*2α/360°=1288.89