A pendulum swings through an arc length of 15 units in a cir...

Question Analysis
This problem assesses the ability to convert the central angle from radians to degrees after finding it using the arc length formula.

Key Concept Explanation
The arc length of a circle is given by the formula , where is the radius and is the central angle in radians. To convert radians to degrees, use the formula .

Step-by-step Solution
1. Identify the given values: units and units.
2. Use the formula