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Mathematics, Grade 4
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Study Guide Shapes Mathematics, Grade 4
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GEOMETRY:
POLYGONS
What
Are
Polygons?
•
Polygons
are
many-sided
figures,
with
sides
that
are
line
segments.
•
Polygons
are
named
according
to
the
number
of
sides
and
angles
they
have.
•
A
polygon
is
a
closed
figure
made
by
joining
line
segments.
•
The
most
familiar
polygons
are
the
triangle,
the
rectangle,
and
the
square.
How
to
name
polygons:
Polygons
are
named
by
the
amount
of
sides
they
have.
Count
the
sides,
then
name
the
polygon.
3
sides
-
triangle
4
sides
-
quadrilateral
5
sides
-
pentagon
6
sides
-
hexagon
7
sides
-
heptagon
8
sides
-
octagon
9
sides
-
nonagon
10
sides
-
decagon
11
sides
-
hendecagon
12
sides
–
dodecagon
Example:
this
4-sided
polygon
is
a
quadrilateral.
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purchaser
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Try
This!
Name
the
polygon.
© Copyright NewPath Learning. All Rights Reserved.
Permission
is
granted
for
the
purchaser
to
print
copies
for
non-commercial
educational
purposes
only.
Visit
us
at
www.NewPathLearning.com.
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