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32 Cards in this Set
- Front
- Back
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pentagon
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5 sides
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hexagon
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6 sides
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heptagon
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7 sides
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octagon
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8 sides
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nonagon
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9 sides
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ennagon
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9 sides
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decagon
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10 sides
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hendecagon
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11
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undecagon
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11
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triskaidecagon
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13 sides
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tetradaidecagon
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14 sides
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pendedecagon
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15 sides
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hexadecagon
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16 sides
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Hexakaidecagon
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16 sides
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Heptadecagon
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17 sides
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Heptakaidecagon
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17 sides
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Octadecagon
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18 sides
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Octakaidecagon
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18 sides
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Enneadecagon
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19 sides
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Enneakaidecagon
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19 sides
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Icosagon
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20 sides
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Triacontagon
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30 sides
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Tetracontagon
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40 sides
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Pentacontagon
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50 sides
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Hectogon
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100 sides
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Hecatontagon
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100 sides
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Area of a regular polygon
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(1/2) N sin ( 360 degrees/ N) S^2
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Sum of the interior angles
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(N - 2) x 180°
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number of diagonals in a polygon
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1/2 N(N-3)
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interior angle measurement
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180(n-2)/n
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language of polygon names
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you are learning to count in Greek
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dodecagon
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12 sides
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