Polygons a polygon is a closed curve (figure)formed by the line segments such that : (i)no two line segments intersect except at their end -points.(ii)no two line segments with a common end points are coincident.

(i) No two line segments intersect except at their endpoints.

Two line segments may intersect at two points

Interior point of a line segment

Mid point of a line Segment

Draw a line segment equal to the sum of two line segments given in Fig.

Fill in the blank A polygon is a simple closed figure formed by more than ……….. Line segments.

If a line segment joining two points subtends equal angles at two other points lying on the sae side of the line segment; the four points are concyclic.

Convex polygon a polygon is a convex polygon if the line segment joining any two points inside it lies completely inside the polygon.

Find out the incorrect statement, if any, in the following An angle is formed when we have (a) two rays with a common end-point (b) two line segments with a common end - point (c ) a ray and a line segment with a common end - point