Question

Which best describes how to find the length of an arc in a circle?

Answer 1

A. Simplify the fraction of the arcs degree over 360 then multiply by the circumference of the circle

Answer 2

Answer:

A. Divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

Step-by-step explanation:

The first choice describes the right way to find the length of an arc in a circle.

The length of an arc is defined as

$L=2\pi r (\frac{\theta}{360\°} )$

Where $2\pi r$ represents the circumference of the circle and $\theta$ represents the arc's degree measure.

So, as you can observe through this formula, we need to divide the arc's degree measure by 360°, and then multiply this result with the circumference of the circle, that's the right way based on the definition of arc length.

Therefore, the right answer is A.