Types of Polygons Tuesday, 07 May 2019

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

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

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

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

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

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

Regular 6 Sided Polygon To find the value of 𝑥 𝑥