Question

What is the length of AB (The minor arc)?
http://tinypic.com/r/1z3xwyq/5

Answer 1

what would the circumference of the whole circle be?

Answer 2

31.4?

Answer 3

10 pi yes

now we need to take some percentage of this; we only have 72 out of 360 degrees sooo

10pi * 72/360 should do it

Answer 4

and dont forget the "cm" part of it

Answer 5

6.28cm?

Answer 6

yes, that seems valid wnough

Answer 7

*enough

Answer 8

Thank you! Is there an equation i can use to find that?

Answer 9

part of the circumference of a circle ...\[C=2\pi~r\]
\[\frac{\theta}{360}C=\frac{\theta}{360}2\pi~r\]
\[\frac{\theta}{360}C=\frac{\theta}{180}\pi~r\]

Answer 10

Thank you!

Answer 11

youre welcome