Reflex AngleDate: 11/30/98 at 02:05:07 From: Roshan Shariff Subject: Reflex angle What is a reflex angle? Date: 11/30/98 at 06:00:05 From: Doctor Pat Subject: Re: Reflex angle It depends a little on the area you work in. After plane geometry, it is usually defined as an angle between 180 and 360 degrees. In plane geometry it is often defined as an angle that makes a polygon concave: think of one that bends into a polygon and not out. I will try to make an ASCII drawing showing the angle at vertex A as the reflex angle: E B |\ /| | \ / | | \/ | | A | | | |______| B C - Doctor Pat, The Math Forum http://mathforum.org/dr.math/ |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994- The Math Forum at NCTM. All rights reserved.
http://mathforum.org/dr.math/