Question

What is the measure of theta

Answer 1

B. 3 radians

Explanation:

We are given the following components of the circle.

Radius of circle (r) = 4 cm

Length of arc (l) = 12 cm

Lenght of arc of a circle is given by the following formula:

`l = (\theta)/(2\pi^c)* 2\pi r`

Substituting the values of l and r in the above formula, we find:

`12 = (\theta)/(2\pi^c )* 2\pi * 4\\\\</p><p>\therefore 12 = \theta * 4\\\\</p><p></p><p>\theta = (12)/(4)\\\\</p><p>\theta = 3 \: radians`