A polygon is a plane shape with straight sides.
Is it a Polygon?
Shapes Games More Games Hero Elementary Treehouse Trouble. Sara and Fur Blur need help fixing treehouses around City Town! Dinosaur Train Track Stars. Use geometric shapes to build train cars, decorate your train, add passengers,. Shape definition, the quality of a distinct object or body in having an external surface or outline of specific form or figure.
Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is 'closed' (all the lines connect up).
Polygon (straight sides) | Not a Polygon (has a curve) | Not a Polygon (open, not closed) |
Polygon comes from Greek. Poly- means 'many' and -gon means 'angle'.
Types of Polygons
Regular or Irregular
A regular polygon has all angles equal and all sides equal, otherwise it is irregular Rayman origins 1 0 1.
Regular | Irregular |
Concave or Convex
A convex polygon has no angles pointing inwards. Postico 1 5 3 – a modern postgresql client failed. More precisely, no internal angle can be more than 180°.
If any internal angle is greater than 180° then the polygon is concave. (Think: concave has a 'cave' in it)
Convex | Concave |
Simple or Complex
A simple polygon has only one boundary, and it doesn't cross over itself. A complex polygon intersects itself! Many rules about polygons don't work when it is complex.
Simple Polygon (this one's a Pentagon) | Complex Polygon (also a Pentagon) |
More Examples
Irregular Hexagon | Concave Octagon | Complex Polygon (a 'star polygon', in this case a pentagram) |
Shapes 4 9 X 9
Play With Them!
Try Interactive Polygons .. make them regular, concave or complex.
Names of Polygons
If it is a Regular Polygon.. | |||
Name | Sides | Shape | Interior Angle |
---|---|---|---|
Triangle(or Trigon) | 3 | 60° | |
Quadrilateral(or Tetragon) | 4 | 90° | |
Pentagon | 5 | 108° | |
Hexagon | 6 | 120° | |
Heptagon (or Septagon) | 7 | 128.571° | |
Octagon | 8 | 135° | |
Nonagon (or Enneagon) | 9 | 140° | |
Decagon | 10 | 144° | |
Hendecagon (or Undecagon) | 11 | 147.273° | |
Dodecagon | 12 | 150° | |
Triskaidecagon | 13 | 152.308° | |
Tetrakaidecagon | 14 | 154.286° | |
Pentadecagon | 15 | 156° | |
Hexakaidecagon | 16 | 157.5° | |
Heptadecagon | 17 | 158.824° | |
Octakaidecagon | 18 | 160° | |
Enneadecagon | 19 | 161.053° | |
Icosagon | 20 | 162° | |
Triacontagon | 30 | 168° | |
Tetracontagon | 40 | 171° | |
Pentacontagon | 50 | 172.8° | |
Hexacontagon | 60 | 174° | |
Heptacontagon | 70 | 174.857° | |
Octacontagon | 80 | 175.5° | |
Enneacontagon | 90 | 176° | |
Hectagon | 100 | 176.4° | |
Chiliagon | 1,000 | 179.64° | |
Myriagon | 10,000 | 179.964° | |
Megagon | 1,000,000 | ~180° | |
Googolgon | 10100 | ~180° | |
n-gon | n | (n−2) × 180° / n |
You can make names using this method:
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Example: a 62-sided polygon is a Hexacontadigon |
BUT, for polygons with 13 or more sides, it is OK (and easier) to write '13-gon', '14-gon' .. '100-gon', etc.
Remembering
Quadrilateral (4 Sides)
A Quad Bike has 4 wheels
Pentagon (5 Sides)
The 'Pentagon' in Washington DC has 5 sides
Hexagon (6 Sides)
Honeycomb has Hexagons
Septagon (7 Sides)
Think Septagon is a 'Seven-agon'
Octagon (8 Sides)
An Octopus has 8 tentacles Tembo 2 0 3 download free.
Nonagon (9 Sides)
Think Nonagon is a 'Nine-agon'
Decagon (10 Sides)
Think Decagon has 10 sides,
just like our Decimal system has 10 digits
Height/Weight Chart Illustrated with Photographs
By Rob Cockerham |
Behold, every size and shape of body, here in one easy chart. Click on a photo to see all photos of that body size.
Yes! I would love to add your photo. Visit the introduction for more information.
In the 100-190 lbs. Range
6' 7' 90-190 lbs.6' 6' 90-190 lbs.6' 5' 90-190 lbs.6' 4' 90-190 lbs.6' 3' 90-190 lbs.6' 2' 90-190 lbs.6' 1' 90-190 lbs.6' 0' 90-190 lbs.5' 11' 90-190 lbs.5' 10' 90-190 lbs.5' 9' 90-190 lbs.5' 8' 90-190 lbs.5' 7' 90-190 lbs.5' 6' 90-190 lbs.5' 5' 90-190 lbs.5' 4' 90-190 lbs.5' 3' 90-190 lbs.5' 2' 90-190 lbs.5' 1' 90-190 lbs.5' 0' 90-190 lbs.4' 11' 90-190 lbs.4' 10' 90-190 lbs.In the 200-290 lbs. Range
6' 8' 200-290 lbs.6' 7' 200-290 lbs.6' 6' 200-290 lbs.6' 5' 200-290 lbs.6' 4' 200-290 lbs.6' 3' 200-290 lbs.6' 2' 200-290 lbs.6' 1' 200-290 lbs.6' 0' 200-290 lbs.5' 11' 200-290 lbs.5' 10' 200-290 lbs.5' 9' 200-290 lbs.5' 8' 200-290 lbs.5' 7' 200-290 lbs.5' 6' 200-290 lbs.5' 5' 200-290 lbs.5' 4' 200-290 lbs.5' 3' 200-290 lbs.5' 2' 200-290 lbs.5' 1' 200-290 lbs.5' 0' 200-290 lbs.4' 11' 200-290 lbs.4' 10' 200-290 lbs.In the 300-380 lbs. Range
Shapes 4 Sides Called
6' 8' 300-380 lbs.6' 7' 300-380 lbs.6' 6' 300-380 lbs.6' 5' 300-380 lbs.6' 4' 300-380 lbs.6' 3' 300-380 lbs.6' 2' 300-380 lbs.6' 1' 300-380 lbs.6' 0' 300-380 lbs.5' 11' 300-380 lbs.5' 10' 300-380 lbs.5' 9' 300-380 lbs.5' 8' 300-380 lbs.5' 7' 300-380 lbs.5' 6' 300-380 lbs.5' 5' 300-380 lbs.5' 4' 300-380 lbs.5' 3' 300-380 lbs.5' 2' 300-380 lbs. (no pictures at this size)Check out The Weight of Clothing
Check out The Smokers vs. Non-Smokers Age Chart