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→Learning objectives
# Plane closed figures with ≥ 3 sides are known as polygons.
# Plane closed figures with ≥ 3 sides are known as polygons.
# They can be defined as two-dimensional, closed, plane shapes composed of a finite number of straight sides that meet at points called vertices.
# They can be defined as two-dimensional, closed, plane shapes composed of a finite number of straight sides that meet at points called vertices.
# There are a countless number of polygons.
# Because they all differ in the number of sides that they have, this results in different angle measures at their vertices.
# With the exception of the triangle and quadrilateral, all polygon names end with "gon."
# Regular polygon names apart have their prefixes, which speak to the number of sides that they have. For instance, the prefix for the word "hexagon" is "hexa," which essentially means "six."
==Notes for teachers==
==Notes for teachers==
===Activity No # 1. Which polygon am I ? ===
===Activity No # 1. Which polygon am I ? ===