Question

Help with two questions?

I've been stuck on these for a while now...

Questions in comments!

Answer 1

For the arc length we use the the formula \[s = r \theta \] ,where theta is the angle in radian form.
r = radius,
For the the circumference we use formula \[2 \Pi r\]

Answer 2

finding the circumference with your given problem we first need to find the radius in order for us to use the formula 2 pi r

so, \[s = r \theta \]

when derived to find radius,

\[r = \frac{ s }{ \theta }\],

Now, when we know the radius substitute the values in the formula 2 pi r and you have your circumference :)

Answer 3

Oh my god you're a life saver! Thanks! :)

Answer 4

You're welcome :)