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## Polygons

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**Polygons**Ms. Brittany Uribe Geometry**What is a Polygon?**• Closed figure • Connecting line segments • Each line segment meets at an endpoint**Which ones are polygons?**B. A. C. D. E.**Regular Polygon**• Sides are all of equal length • Angles are all equal**Triangle**• Three-sided polygon • The sum of all the angles is 180° Obtuse Acute Equilateral Scalene Isosceles Right**Quadrilateral**• Four-sided • The sum of all the angles is 360°**Rectangle**• Four-sided • All angles are 90° • The sum of all the angles is 360°**Square**• Four-sided • Equal-length sides • All right angles • The sum of all the angles is 360°**Parallelogram**• Four-sided • Two pairs of parallel sides • The sum of all the angles is 360°**Rhombus**• Four-sided • Equal-length sides • The sum of all the angles is 360°**Trapezoid**• Four-sided • Exactly one pair of parallel sides • Bases • The sum of all the angles is 360°**Pentagon**• Five-sided • The sum of all the angles is 540°**n-gon**• n-gon is a polygon with n sides Hexagon Heptagon Decagon Octagon