UNIVERSITY OF KERALA

COLLEGE OF TEACHER EDUCATION,

KOLLAM

PRESENTED BYName : Asawthy AjayanOption : MathematicsReg. no. : 13973004Year : 2013-2014

STD : IXSubject : MathematicsUnit : PolygonTopic : Regular Polygon

OBJECTIVESTo know about polygonTo know about regular polygonTo identify the properties of regular polygons

Equilateral Triangle

Each angle is 600

All sides are equal Each side is a= 3 cm

Square

Each square is 900

All sides are equalEach side is 4 cm

4cm

4cm

4cm

4cm

Regular Polygon

Each side is 1080

All sides are equalEach side is 2 cm

108

108

108

108

108

2cm

2cm

2cm

2cm

2cm

Regular Hexagons

Each angle is 1200

All sides are equalEach side is 3 cm

120120

120120

120120

3cm

3cm

3cm

3cm

3cm

3cm

Regular Polygons Polygon with all sides and all angles are equal generally called regular polygons