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Pentagons and Hexagons

Pentagons are polygons with 5 sides. The sum of the interior angles in a pentagon is 540°.

Pentagon in Geometry

In a regular pentagon, all the sides and all the angles are equal, and so each of the interior angles measures 540°/5= 108°.

Similarly, hexagons are polygons with six sides. The sum of the interior angles in a hexagon is 720°.

Hexagon in Geometry

In a regular hexagon, all the sides and all the angles are equal, and so each of the interior angles measures 720°/6= 120°.

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Now that we've explained the basic concepts of pentagons and hexagons in geometry, let's scroll down to work on specific geometry problems relating to this topic.

Regular Hexagon

Regular Hexagon

Geometric shape: empty pentagon

Sum of Angles in a Pentagon

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About

Welcome to Geometry Help! I'm Ido Sarig, a high-tech executive with a BSc degree in Computer Engineering and an MBA degree in Management of Technology. I'm here to tell you that geometry doesn't have to be so hard! My goal with this website is to help you develop a better way to approach and solve geometry problems, even if spatial awareness is not your strongest quality. Read More…

Geometry Topics

  • Area of Geometric Shapes
  • Circles
    • Arcs, Angles, and Sectors
    • Chords
    • Inscribed Shapes
    • Tangent Lines
  • Lines and Angles
    • Intersecting Lines and Angles
    • Parallel Lines
    • Perpendicular lines
  • Pentagons and Hexagons
  • Perimeter of Geometric Shapes
  • Polygons
  • Quadrangles
    • Kites (Deltoids)
    • Parallelograms
    • Rectangles
    • Rhombus
    • Squares
    • Trapezoids
  • Triangles
    • Congruent Triangles
    • Equilateral Triangles
    • Isosceles Triangles
    • Pythagorean Theorem
    • Right Triangles
    • Similar Triangles
    • Triangle Inequalities

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