Question

The stop-board of a shot-put circle is a circular arc 1.22 m in length. The radius of the circle is 1.06 m. What is the central angle?

Answer 1

Central angle= 1.15 radians

Explanation:

`Arc\,\,length=s= 1.22\,m\\Radius=r=1.06\,m\\\\Central\,\, angle=\theta=?\\\\Using\\\\ s=r\theta\\\\\theta=(s)/(r)\\\\\theta= (1.22)/(1.06)\\\\\theta=1.15 \,rad`