Jump to content

Apothems, Circles, Sines, Radii

psi20
in Mathematics

Featured Replies

I forgot the formula on how to convert regular polygons into circles. What I mean by this is by plugging the length of an apothem or a side into a formula, and you yield 3.14159...

The formula has to have the number of sides too. It shows how if the number of sides increase, the polygon becomes a circle.

I believe the formula includes sine if you plug in the side and includes cosine and tangent if you plug in the apothem.

  • Author

I think I found it. I think it's (tan(360/n) n)/2 where n is the number of sides.

I thought it was 180(n -2)/n, but yours sounds right, long time since i used that.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.