Polygon

Polygons A1





Different polygons are here.What is the definition of a polygon?
which are the different polygons?.and what are the basic needs to construct them?That's what conveys through these applets.To see the applets click the link shown below.

polygon

Series of applets 1 (10)

• Growing Shapes
• we can divide any polygon into another polygon with one side less than and a triangle.
• Growth of polygon to circle
• Basic needs for a triangle.
• Basic needs for a quadrilateral.
• Basic needs for a pentagon.
• Basic needs for a hexagon.
• Basic needs for a heptagon.
• Basic needs for a octagon.
• An angle of a polygon.
  
  
  
  
   
  
  
  
  Series of applets 2(5)
  
  
  We can divide any polygon into another polygon with one side less and a triangle.,by drawing a line starting at any vertex,skipping one vertex and joining with the next.
  • Quadrilateral
  • Pentagon
  • Hexagon
  • Heptagon
  • Octagon

Click on applets series 3
Sum of angles of a polygon=(n-2)180
ie for a triangle it is=180
for a quadrilateral it is 360
and for the rest it will be increased by adding one more 180 to the just before.

Exterior Angles of polygons.

click applet series 4

ഓരോ ബാഹ്യകോണും ബഹുഭുജത്തിന്റെ അതിനടുത്ത കോണും അനുപൂരകമാണ്.ഓരോ വശവും ഒരു പ്രത്യേക ക്രമത്തില്‍ നീട്ടി ബാഹ്യകോണുകള്‍ നിര്‍മ്മിക്കാം.ഒരു ശീര്‍ഷത്തില്‍ ഒരേ ഒരു ബാഹ്യകോണ്‍ മാത്രമേ യഥാര്‍ത്ഥമായുള്ളു.

മാറാത്ത തുക

ഏതു ബഹുഭുജത്തിന്റേയും ബാഹ്യകോണുകളുടെ തുക=360

n*180-(n-2)180

Click Polygon series 5

Conversion of polygons 

We can convert any kind of polygons into triangle with same area to the first.
click series 6
pentagon
hexagon

Pure Construction of different polygon.Here we construct regular polygons such as

Equilateral triangle

regular pentagon

regular hexagon

regular decagon

nine point circle,

and one of the properties of pythagorus theorem.

To view the applets click here

Number Patterns Related with Polygons

Triangular Numbers

Square Numbers

Pentagonal Numbers

Hexagonal Numbers

To see the applets click here

Tangram And Geometry

                           The seven pieces of Tangram can be put together to form a square.The triangle can also be made from these seven pieces.Both the square and triangle are convex shapes.These seven pieces which are cut out from a square,but they can be put together to form thousands of shapes.I will give you some interesting shapes like Human figures,Birds,Houses,Vessels,Lamps,Animals,Alphabet,Numbers etc:

 To see the applet click here



In this set about 12 geometrical patterns.To see all applets click here.


In this set 14 patterns. To see all applets click here.