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MATH PLANE FIGURES
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Gravity
Definitions of the various plane figures
Terms in this set (8)
triangle
Has 3 sides and each angle measures 60°.
quadrilateral
4 sides each interior angle measures 90°.
pentagon
5 sides and each angle measures 108°.
hexagon
Has 6 sides and each interior angle measures 120°
heptagon or septagon
Has 7 sides and the sum of the interior angle is 900°
octagon
Has 8 sides each interior angle measures 135°
nonagon
Has 9 sides in the sum of the interior angle is 1260°
decagon
Has 10 sides and the sum of the interior angles is 1440
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