Polygons: Classifying Shapes with Multiple Sides
Chapter 1-6 (Classify Polygons)
What is a polygon?
A closed plane figure
formed by 3 or more line
segments, with no two
sides being collinear.
Chapter 1-6 (Classify Polygons)
Two types of polygons
Convex
: All vertices
going outward
Concave
: A vertex going
inside the polygon
Chapter 1-6 (Classify Polygons)
Example
Tell whether the
following polygons are
convex or concave
Chapter 1-6 (Classify Polygons)
How do you classify
polygons?
Congruent polygons:
Named by the number of
sides
After 12 sides, the
general name is a
n
-gon,
where n is the number of
sides
Equilateral
: All sides are
congruent
Equiangular
: All angles
are congruent
Regular
: Convex polygon
that is both
Chapter 1-6 (Classify Polygons)
Example
Classify the polygons by
the number of sides. Is it
equilateral, equiangular,
or regular?
Chapter 1-6 (Classify Polygons)
Example
Chapter 1-6 (Classify Polygons)
Example
The expression (4x + 8)º
and (5x – 5)º represent
the measures of 2 of the
congruent angles in the
previous problem. Find
the measure the an
angle.
Explore the world of polygons, closed plane figures consisting of three or more line segments. Learn about convex and concave polygons, different classifications based on the number of sides, and properties of congruent polygons. Dive into examples and problems to deepen your understanding.
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Presentation Transcript
Chapter 1-6 (Classify Polygons) A closed plane figure formed by 3 or more line segments, with no two sides being collinear. What is a polygon?
Chapter 1-6 (Classify Polygons) Convex: All vertices going outward Two types of polygons Concave: A vertex going inside the polygon
Chapter 1-6 (Classify Polygons) Example Tell whether the following polygons are convex or concave
Chapter 1-6 (Classify Polygons) How do you classify polygons? Named by the number of sides After 12 sides, the general name is a n-gon, where n is the number of sides Congruent polygons: Equilateral: All sides are congruent Equiangular: All angles are congruent Regular: Convex polygon that is both
Chapter 1-6 (Classify Polygons) Example Classify the polygons by the number of sides. Is it equilateral, equiangular, or regular?
Chapter 1-6 (Classify Polygons) Example
Chapter 1-6 (Classify Polygons) Example The expression (4x + 8) and (5x 5) represent the measures of 2 of the congruent angles in the previous problem. Find the measure the an angle.
