REENTRANT POLYGON Meaning and
Definition
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A reentrant polygon is a polygon shape that possesses at least one inward-pointing angle or vertex. This type of polygon exhibits a concave region, creating an indentation or notch within its outer boundary. The term "reentrant" refers to the polygon's ability to recede or enter into its own interior space.
Unlike convex polygons with all exterior angles pointing outwards, reentrant polygons introduce interior angles pointing towards the polygon's interior. These interior angles greater than 180 degrees create concave corners or vertices within the shape. In simpler terms, the interior of a reentrant polygon contains a "cave" or "inward dip," extending beyond the inner space of convex polygons.
A key characteristic of reentrant polygons is the existence of at least one reflex angle or interior angle measuring greater than 180 degrees. This reflex angle contributes to the polygon's concavity and provides a visual cue for identifying this distinct polygon type.
It is important to note that reentrant polygons can have multiple reflex angles or inner corners, leading to more complex shapes. The presence of these inward-pointing angles introduces certain challenges in computing algorithms, as they may complicate the calculation of lengths, areas, and other geometric attributes.
Reentrant polygons can be found in various applications, including computer graphics, image processing, and geometry.
Common Misspellings for REENTRANT POLYGON
- eeentrant polygon
- deentrant polygon
- feentrant polygon
- teentrant polygon
- 5eentrant polygon
- 4eentrant polygon
- rwentrant polygon
- rsentrant polygon
- rdentrant polygon
- rrentrant polygon
- r4entrant polygon
- r3entrant polygon
- rewntrant polygon
- resntrant polygon
- redntrant polygon
- rerntrant polygon
- re4ntrant polygon
- re3ntrant polygon
- reebtrant polygon
Etymology of REENTRANT POLYGON
The word reentrant is derived from the French word rentrer, which means to re-enter. The term reentrant polygon is used in geometry to describe a polygon that has an inward point or angle, causing a portion of the perimeter to enter the polygon itself. This inward angle is often referred to as a reentrant angle. The word polygon comes from the Greek words poly, meaning many, and gonia, meaning angle.
Similar spelling words for REENTRANT POLYGON
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