Transcript Polygon Presentation

Polygon
Presentation
By: Team Math
Resource Page
Polygon names
Name
Sides
triangle (or trigon)
3
quadrilateral (or tetragon)
4
pentagon
5
hexagon
6
heptagon (avoid "septagon")
7
octagon
8
enneagon (or "nonagon")
9
decagon
10
tables found on
wikepedia under
polygons
Resource Page
hendecagon (avoid "undecagon") 11
dodecagon (avoid "duodecagon") 12
triskaidecagon
13
pentadecagon
15
heptadecagon
17
enneadecagon
19
icosagon
20
triacontagon
30
pentacontagon
50
hectagon (avoid "centagon")
100
chiliagon
1000
myriagon
10,000
Resource Page
and
Tens
Ones
final prefix
1 hena-
20 icosi-
2 -di-
30 triaconta-
3 -tri-
40 tetraconta-
4 -tetra-
50 pentaconta-
-kai- 5 -penta-
60 hexaconta-
6 -hexa-
70 heptaconta-
7 -hepta-
80 octaconta-
8 -octa-
90 enneaconta-
9 -ennea-
-gon
That is, a 42-sided figure would be named as follows:
Tens
tetraconta-
and
-kai-
Ones
-di-
final
pre full polygon name
fix
-gon
tetracontakaidigon
and a 50-sided figure
Tens
pentaconta-
and
Ones
final
prefi
x
-gon
full polygon name
pentacontagon
Types of Polygons
Regular Polygons
Triangles
Quadrilaterals
Pentagons
Hexagons
Octagons
Decagons
Regular Polygons
• All of the sides and the
angles are congruent
Triangles
• Three sided polygons
Quadrilaterals
• Four sided polygons
Pentagons
• Five sided polygons
Hexagons
• Six sided polygons
Octagons
• Eight sided polygons
Decagons
• Ten sided polygons
Name the following
polygons.
1
2
3
• 1 – HEXAGON
• 2 – QUADRILATERAL
• RECTANGLE
• 3 - DECAGON
Name the following
polygons.
1
2
3
• 1 – Octagon
• 2 – Pentagon
• 3 – Scalene Triangle
What polygons
can you find…
• In your classroom?
• On the playground?
• In your own home?