Question

How do you find the length of an arc? not the angle measure the length

Answer 1

\[l = r \theta\]

Answer 2

Can you explain that formula?

Answer 3

I don't have the radian. (I think that's what it's called)

Answer 4

In a circle, the radius, the arc length (which is L), and the central angle are related by that formula I showed.

Answer 5

So the circle with the line through it is the central angle? or something else

Answer 6

Hello?

Answer 7

The arc length subtends the central angle.