Polygons Poly means many gon means side So

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Polygons

Polygons

 • Poly means many • gon means side • So polygons means many

• Poly means many • gon means side • So polygons means many sides

 • A polygon must only be made of straight sides. • The shape

• A polygon must only be made of straight sides. • The shape must be closed.

These are polygons.

These are polygons.

These are not polygons.

These are not polygons.

Regular polygons have all sides the same length.

Regular polygons have all sides the same length.

In this case regular is the opposite of irregular. What does irregular in clothing

In this case regular is the opposite of irregular. What does irregular in clothing mean? Badly stitched in some small area, wrong sizing. The rejects from the good clothes basically.

This are irregular polygons.

This are irregular polygons.

Tri means 3 • Triangles have 3 sides.

Tri means 3 • Triangles have 3 sides.

triplets

triplets

tricycle

tricycle

trio

trio

trident

trident

triathlon

triathlon

triple

triple

triceratops

triceratops

quad means 4 • Quadrilaterals have 4 sides.

quad means 4 • Quadrilaterals have 4 sides.

quadruple • 4 x

quadruple • 4 x

quadriceps

quadriceps

quadruplets

quadruplets

quadriplegic

quadriplegic

quadrunner

quadrunner

penta means 5 • Pentagons have 5 sides.

penta means 5 • Pentagons have 5 sides.

pentagon

pentagon

Pentathlon 5 events show jumping fencing shooting swimming running

Pentathlon 5 events show jumping fencing shooting swimming running

pentagonal star

pentagonal star

Pentateuch • First 5 books of the Bible

Pentateuch • First 5 books of the Bible

Hex means 6 • Hexagons have 6 sides.

Hex means 6 • Hexagons have 6 sides.

Hex head bolts

Hex head bolts

Hex head nuts

Hex head nuts

6 equilateral triangles together make a hexagon.

6 equilateral triangles together make a hexagon.

Oct means 8 • Octagons have 8 sides.

Oct means 8 • Octagons have 8 sides.

octave • 8 notes • do, re, me, fa, so, la, ti , do

octave • 8 notes • do, re, me, fa, so, la, ti , do

octopus

octopus

octogenarian • Someone in their 80’s

octogenarian • Someone in their 80’s

October used to be the 8 th month

October used to be the 8 th month

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

Triangle Quadrilateral Pentagon Hexagon Octagon

The End?

The End?