http://www.google.com.ph/imgres?um=1&hl=en&safe=off&biw=1024&bih=465&tbm=isch&tbnid=GiPtMrPtjrrLRM:&imgrefurl=http://www.beaconlearningcenter.com/weblessons/brendasbedroom/default.htm&docid=AuwPb-dRV6q8eM&imgurl=http://www.beaconlearningcenter.com/weblessons/brendasbedroom/bogsshap.gif&w=200&h=200&ei=kD93UJr6K_HtmAWvxICIAQ&zoom=1&iact=hc&vpx=122&vpy=4&dur=2082&hovh=160&hovw=160&tx=89&ty=78&sig=105054374967390457710&page=2&tbnh=127&tbnw=123&start=12&ndsp=15&ved=1t:429,r:10,s:12,i:167

Plane figures made up of three or more closed line segments are polygons. Each line segment of a polygon is a side. Polygons are classified by the number of sides.

  http://eduplace.com/math/mhm/3/07/index.html 

Shapes, A Study

http://www.youtube.com/watch?v=IH7acfylMO8

When most people hear the word geometry, they think about shapes. Students should realize they are surrounded by many different kinds of shapes every day. Many of these shapes are two-dimensional plane figures.
Plane figures are flat. They can be closed or not closed.
    http://eduplace.com/math/mhm/3/07/index.html

Geometrical shapes Introducing Line and PLANE FIGURES

http://www.youtube.com/watch?v=MzedWunAWj4

PLANE FIGURES (examples)