~CHARACTERISTICS OF A POLYGON~ ~EXAMPLES~
- A polygon must be a closed figure. M is not a polygon because it is not closed.
- A polygon can't have any curved sides or lines. D is not a polygon because it has a curve.
- Segments can't overlap. A is not a polygon because sides overlap.
- Must have at least three sides. L is not a polygon because it has only two lines.
~TYPES OF POLYGONS~ ~EXAMPLES~
Convex- No points are inside the figure. -square, triangle
Concave- Has at least one point inside the figure. -star, hourglass
~DIAGONALS~
- From one point in the shape to another
- Make triangles
- Must stay inside the figure
~SIDES (-2) MINIMUM TRANGLES (x180) TOTAL DEGREES~
3 1 180
4 2 360
5 3 540
6 4 720
7 5 900
8 6 1080
9 7 1260
10 8 1440
etc. etc. etc.
~REGULAR POLYGONS~ ~EXAMPLES~
- equal angular a regular triangle has all 60 degree angles
- equilateral a regular triangle could have all three inch long sides
~NEXT SCRIBE~
Ashley
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