60度圆心角所对的弧长是9点42厘米则此圆的直径为多少厘米?
问题描述:
60度圆心角所对的弧长是9点42厘米则此圆的直径为多少厘米?
答
9.42÷(60÷360)÷3.14=18
60度圆心角所对的弧长是9点42厘米则此圆的直径为多少厘米?
9.42÷(60÷360)÷3.14=18