Polygons Summary

Polygons

Summary

a polygon is a shape with three or more straight sides.

Key Skills
  • know the names of the commonly used polygons.
  • calculate the sizes of interior and exterior angles of regular polygons.
  • know the general formula for finding the sum of the interior and exterior angles of polygons.

Vocabulary

polygon, convex, concave, regular polygon, exterior angle, interior angle, equilateral triangle, square, pentagon, hexagon, octagon, decagon