1. A polygon is a closed curve.
2. All diagonals of a convex polygon lie completely inside the polygon.
3. Diagonal is a segment joining two non-consecutive vertices.
4. A polygon with 15 sides is called pentadecagon.
5. Triangle is a polygon with least number of sides.
6. A convex polygon is also concave.
7. The point of intersection of two adjacent sides of a polygon is called its vertex.
8. Any two sides of a polygon having the same vertex are called adjacent sides. 9. In a polygon, angle formed by a side and an extension of an adjacent side is called an exterior angle.
10. The sum of all exterior angles of a polygon is 360°.

Bukas ko na ito ipapass ​