13 Tridecagon, Triskaidecagon Regular Hexagon 14 Tetradecagon, Tetrakaidecagon 6 sides Interior angle 120º 15 Pentadecagon, Pentakaidecagon 16 Hexadecagon, Hexakaidecagon 17 Heptadecagon, Heptakaidecagon Regular Heptagon 7 sides 18 Octadecagon, Octakaidecagon Interior angle 128.57° 19 Enneadecagon, Enneakaidecagon 20 Icosagon 30 Triacontagon Regular Octagon 8 sides 40 Tetracontagon Interior angle 135° 50 Pentacontagon 60 Hexacontagon Regular Nonagon 70 Heptacontagon 9 sides 80 Octacontagon Interior angle 140° 90 Enneacontagon 100 Hectogon, Hecatontagon Regular Decagon 1,000 Chiliagon 10 sides 10,000 Myriagon 144º Interior angle To construct a name, combine the prefix+suffix Regular Dodecagon 12 sides º Interior angle 150 For you to know: + POLYGON NAMES generally accepted names Sides Name n N-gon 3 Triangle 4 Quadrilateral Examples: 5 Pentagon 46 sided polygon – Tetracontakaihexagon 28 6 Hexagon sided polygon - Icosikaioctagon 7 Heptagon However, many people use the form n-gon, as in 8 Octagon 46-gon, or 28-gon instead of these names. 10 Decagon CONSTRUCTION OF REGULAR POLYGONS 12 Dodecagon Names for other polygons have been proposed. Sides Name CONSTRUCTION OF A PENTAGON 9 Nonagon, Enneagon You will need a ruler and a compass. 11 Undecagon, Hendecagon
Regular Hexagon 6 sides Interior angle 120º Regular Heptagon 7 sides Interior angle 128.57° Regular Octagon 8 sides Interior angle 135° Regular Nonagon 9 sides Interior angle 140° Regular Decagon 10 sides Interior angle 144º Regular Dodecagon 12 sides Interior angle 150 º For you to know: POLYGON NAMES generally accepted names Sides Name n N-gon 3 Triangle 4 Quadrilateral 5 Pentagon 6 Hexagon 7 Heptagon 8 Octagon 10 Decagon 12 Dodecagon Names for other polygons have been proposed. Sides Name 9 Nonagon, Enneagon 11 Undecagon, Hendecagon 13 Tridecagon, Triskaidecagon 14 Tetradecagon, Tetrakaidecagon 15 Pentadecagon, Pentakaidecagon 16 Hexadecagon, Hexakaidecagon 17 Heptadecagon, Heptakaidecagon 18 Octadecagon, Octakaidecagon 19 Enneadecagon, Enneakaidecagon 20 Icosagon 30 Triacontagon 40 Tetracontagon 50 Pentacontagon 60 Hexacontagon 70 Heptacontagon 80 Octacontagon 90 Enneacontagon 100 Hectogon, Hecatontagon 1,000 Chiliagon 10,000 Myriagon To construct a name, combine the prefix+suffix + Examples: 46 sided polygon – Tetracontakaihexagon 28 sided polygon - Icosikaioctagon However, many people use the form n-gon, as in 46-gon, or 28-gon instead of these names. CONSTRUCTION OF REGULAR POLYGONS CONSTRUCTION OF A PENTAGON You will need a ruler and a compass.
28382016%20Materia%2010th%20GRADE%20Q1.docx