# B Circles -- transform degrees in minute

1. Aug 30, 2016

### NickTesla

A minha pergunta é na divisão 10800/1110
My question is in the division 10800/1110 ???

Last edited by a moderator: Aug 30, 2016
2. Aug 30, 2016

### Staff: Mentor

They started with the notion that 180 degrees = $\pi$ radians

and then the equivalent notion that 10800 minutes = $\pi$ radians

and then they construct a ratio 180 deg / (18 deg 30 min) = (10800 min) / (1100 min) = 360 / 37 = $\pi$ / x radians

and then solve for x.

3. Aug 30, 2016

### NickTesla

My question is to simplify,
how do I simplify? Method of successive division!

Last edited by a moderator: Aug 30, 2016
4. Aug 30, 2016

### Staff: Mentor

Simplify what?
I don't see anywhere in your thread what it is you're trying to do.
Is the problem to convert 18° 30' into minutes? Or is it to convert this angle measure to radians?

5. Aug 30, 2016

### NickTesla

I'm trying to understand the simplification,
should be 30 to 10800 and 30 to 1110 ,lol
Thank you for letting me know

Last edited by a moderator: Aug 30, 2016
6. Aug 30, 2016

### Staff: Mentor

You didn't answer my question. What are you trying to convert?

Is your question how they went from $\frac{10800}{1110}$ to $\frac{360}{37}$? If so, 1080 = 30 * 360, and 1110 = 30 * 37.

7. Aug 31, 2016

### NickTesla

Perfect is 30

8. Aug 31, 2016

Thank you!!