Flashcards: Polygon vocabulary
All 16 terms
Terms | Definitions |
|---|---|
 polygon | a closed figure whose sides are all segments |
| convex | extended sides pass do not pass through center of shape |
| concave | extended sides pass through the center of the shape |
| classification of polygons | by the number of sides |
| regular polygon | convex with all congruent sides and angles |
| perimeter | sum of the lengths of sides |
| triangle | 3 sides |
| quadrilateral | 4 sides |
| pentagon | 5 sides |
| hexagon | 6 sides |
| heptagon | 7 sides |
| octagon | 8 sides |
| nonagon | 9 sides |
| decagon | 10 sides |
| dodecagon | 12 sides |
| n-gon | n number of sides |