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DIFFERENT KINDS OF
POLYGONS
What is polygon?
A polygon is a closed figure made by
joining line segments, where each line
segment intersects exactly two others.
TRIANGLE
The triangles of a
polygon are the
triangles created by
drawing line
segments from
one vertex of a
polygon to all the
others.
QUADRILATERAL
a quadrilateral is a polygon with
four edges (or sides) and four vertices or
corners. Sometimes, the
term quadrangle is used, by analogy
with triangle, and sometimes tetragon for
consistency with pentagon (5sided), hexagon (6-sided) and so on.
The origin of the word "quadrilateral" is the
two Latin words quadri, a variant of four,
and latus, meaning "side".
PENTAGO
N

In geometry,
a pentagon (from the Greek
πέντε pente and γωνία
gonia, meaning five and
angle) is any fivesided polygon or 5-gon. The
sum of the internal angles in a
simple pentagon is 540°.
A pentagon may be simple
or self-intersecting.
HEXAGO
N

In geometry,
a hexagon (from Greek
ἕξ hex, "six" and γωνία,
gonía, "corner, angle") is
a 6-sidedpolygon or 6gon. The total of the
internal angles of
any hexagon is 720°.
HEPTAGO
N

A heptagon is a sevensided polygon. It also has
seven vertices and
angles. A
regular heptagon is
a heptagon that has
congruent sides and
angles.
OCTAGO
N

In geometry,
an octagon (from the Greek
ὀκτάγωνον oktágōnon,
"eight angles") is an 8sided polygon or 8-gon. A
regular octagonhas Schläfli
symbol {8} and can also be
constructed as a
quasiregular truncated
square, t{4}, which alternates
two types of edges.
NONAGO
N

In geometry,
a nonagon /ˈnɒnəɡɒn/ (or
enneagon /ˈɛniːəɡɒn/) is a
nine-sided polygon or 9-gon.
The name "nonagon" is a
prefix hybrid formation, from
Latin (nonus, "ninth" + gonon),
used equivalently, attested
already in the 16th century in
French nonogone and in
English from the 17th century.
DECAGON

A regular decagon has all
sides of equal length and
each internal angle will always
be equal to 144°.Its Schläfli
symbol is {10} and can also be
constructed as
a truncated pentagon, t{5}, a
quasiregular decagon
alternating two types of edges.
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