1. Types of Polygons
Tuesday, 07 May 2019

2. 5 Sided Polygon
Pentagon
Regular Pentagon
Has five sides of equal length
Has five angles of equal size
Has rotational symmetry of order 5
Has 5 lines of symmetry

3. 6 Sided Polygon
Hexagon
Regular Hexagon
Has six sides of equal length
Has six angles of equal size
Has rotational symmetry of order 6
Has 6 lines of symmetry

4. Has eight sides of equal length Has eight angles of equal size
8 Sided Polygon
Octagon
Regular Octagon
Has eight sides of equal length
Has eight angles of equal size
Has rotational symmetry of order 8
Has 8 lines of symmetry

5. Has ten sides of equal length Has ten angles of equal size
10 Sided Polygon
Decagon
Regular Decagon
Has ten sides of equal length
Has ten angles of equal size
Has rotational symmetry of order 10
Has 10 lines of symmetry

6. Angles in a Polygon Angles in a triangle add up to 180°
Angles in a quadrilateral add up to 360°

7. Angles in a pentagon add up to 540°
Angles in a hexagon add up to 720°
Angles in a heptagon add up to 900°

8. Regular 6 Sided Polygon
To find the value of 𝑥 𝑥