Question

Which equation gives the length of an arc

Answer 1

Answer:

$arc=\frac{\pi\theta}{360}(d)$

Step-by-step explanation:

There is no any option, but the question is answerable. The length of an arc of a circumference is a fraction of that circumference. Recall that a circumference measures 360 degrees. Suppose you have an arc whose central angle $\theta$ degrees, then the arc of a circumference can be found as:

$\boxed{arc=\frac{\pi\theta}{360}(d)} \\ \\ Where: \\ \\ \theta: \ central \ angle \\ \\ d: \ diameter \ of \ the \ circle$

So in this case, the expression:

$\frac{\pi\theta}{360}$

represents the fraction we are talking about.