Question

Find the radian measure of the central angle Ogiven the radius r and the arc-length s transcribed by O.r = 32 cm; s = 30 cm

Answer 1

Statement Problem: Find the radian measure of the central angle given the radius r and the arc-length s transcribed by the angle.

Solution:

You can also use the radius of the circle and the arc length to find the central angle. The central angle is given as;

`\begin{gathered} \theta=s/ r \\ \text{Where s=arc length, r = radius} \end{gathered}`

Given the radius and arc length as;

`r=32cm,s=30cm`
`\begin{gathered} \theta=(32)/(30) \\ \theta=1.0667rad \end{gathered}`