答案是2.25和4.62
计算公式：3.14*L/(2*sin(180-2*arctan(L/(2*H))))*(360-4*arctan(L/(2*H)))/180
L为弦长H为弦高
圆弧计算：弦长1m,弦高0.8m,求弧长?弦长3.76m弦高1.14m,求弧长?
答案是2.25和4.62
计算公式：3.14*L/(2*sin(180-2*arctan(L/(2*H))))*(360-4*arctan(L/(2*H)))/180
L为弦长H为弦高