The radius of a cirle is 30 cm. Find the length of an arc of this circle if the length of the chord of the arc is 30 cm.

Explanation

To find the length of the arc of a circle given the radius and the length of the chord, we can follow these steps:

### Step 1: Understand the given information
- The radius \( r \) of the circle is \( 30 \) cm.
- The length of the chord \( c \) is \( 30 \) cm.

### Step 2: Use the relationship between the chord length and the angle subtended at the center
We can use the formula for the chord length in terms of the radius and the angle subtended at the center:
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