Shapes
Lesson
Topic Index | Grade 3 Math | Elementary Test Prep | StudyZone

Shapes are Plane Figures
that lie on a flat surface.

   Shapes can be polygons → A closed plane figure made up of line segments.



A polygon with 3 sides
 



A polygon with 5 sides
 



A polygon with 8 sides
 



hexagon
A polygon with 6 sides
 


A 4-sided figure with 4 right angles and opposite sides parallel and the same length


A 4-sided figure that has 4 equal sides and 4 right angles

A 4-sided figure that has exactly one pair of parallel sides

A 4-sided figure with 2 pairs of parallel sides and all sides the same length
      
        

A circle is also a plane figure. A circle is a plane figure in which all the points are the same distance from a point called the center.   

You can use geometric shapes to help describe real-world objects.
Example 1:

Name the shape.
 

                                          The flag is a rectangle
                                          It is a
4-sided figure with 4 right angles and
                                          opposite sides parallel and the same length
.
 

Example 2:

  Name the shape.
                                           This sign is a triangle.
                                           It is
a polygon with 3 sides.
 

Example 3:

                    

Name the shape.

                                             The sign the boy is holding is an octagon.
                                           
It is a polygon with 8 sides

 

            Remember:

Shapes are Plane Figures
that lie on a flat surface.

Click on the apple for practice.

 
Topic Index | Grade 3 Math | Elementary Test Prep | StudyZone

Created by Carol Carroll
Updated by Pat Delia
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