Difference between revisions of "Angle"
Jump to navigation
Jump to search
BRichtigen (talk | contribs) m (small repair) |
|||
| Line 1: | Line 1: | ||
An '''angle''' was described by [[Euclid]] as "the inclination to one another of two lines which meet each other in the same [[plane]]." An angle is a bend formed by two intersecting [[line]]s or [[Line Segment]]s. | An '''angle''' was described by [[Euclid]] as "the inclination to one another of two lines which meet each other in the same [[plane]]." An angle is a bend formed by two intersecting [[line]]s or [[Line Segment]]s. | ||
| − | Angles are described as being | + | Angles are described as being: |
| + | * [[Acute angle|acute]] (less than 90 [[degree]]s) | ||
| + | * [[Right angle|right]] (90 degrees exactly) | ||
| + | * [[Obtuse angle|obtuse]] (greater than 90 degrees but less than 180 degrees) | ||
| + | * [[Reflex angle|reflex]] (over 180 degrees) | ||
| + | |||
| + | A 180 degree angle is a straight line. | ||
[[Category:Geometry]] | [[Category:Geometry]] | ||
Revision as of 21:57, November 14, 2008
An angle was described by Euclid as "the inclination to one another of two lines which meet each other in the same plane." An angle is a bend formed by two intersecting lines or Line Segments.
Angles are described as being:
- acute (less than 90 degrees)
- right (90 degrees exactly)
- obtuse (greater than 90 degrees but less than 180 degrees)
- reflex (over 180 degrees)
A 180 degree angle is a straight line.