Polygons
Lesson
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A polygon is a closed plane figure with straight sides.

Geometric Figures

3 sides 5 sides 6 sides 8 sides
3 angles 5 angles 6 angles 8 angles

 

Quadrilaterals

4 sides 4 sides 4 sides 4 sides
4 angles 4 angles 4 angles 4 angles

 

Regular Polygons- all the sides have equal length and all the angles have equal measure.
Examples


 




 

 

Not Regular Polygons: all the sides don't have equal length and all the angles don't have equal measure.
Example 2:

 

Remember: A polygon is a closed plane figure with straight sides.
 

Let's Practice!
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Topic Index | Grade 4 Math | Elementary Test Prep | StudyZone

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Updated by Nicole Freebern
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