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Angle definitions 2
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20
Mathematics
6th Grade
02/09/2011
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Term
Complimentary angles
 Definition
two angles who's measures add up too 90 degrees.
Term
supplimentary angles
 Definition
angles whos measures add up too 180 degrees.
Term
compass
 Definition
used to draw angles with.
Term
arc
 Definition
part of a circle
Term
minor arc
 Definition
arc less than 180 degress
Term
major arc
 Definition
arc greater then 180 degrees
Term
perpendicular bisector
 Definition
a line that is perpendicular to its segment and contains the segments midpoint
Term
angle bisector
 Definition
a ray that splits an angle in to 2 congruent angles. its endpoint is the vertex.
Term
polygon
 Definition
closed plane figure made up of line segments
Term
triangle
 Definition
3 sided polygon
Term
quadrilaterial
 Definition
4 sided polygon
Term
pentagon
 Definition
5 sided polygon
Term
hexagon or septagon
 Definition
six sided polygon
Term
octogon
 Definition
8 sided polygon
Term
heptagon
 Definition
7 sided polygon
Term
non-agon
 Definition
9 sided polygon
Term
decogone
 Definition
10 sided polygon
Term
n-gone
 Definition
polygone whose sides vary in length
Term
regular polygon
 Definition
sides of equal length and angles of equal measure
Term
dodecagon
 Definition
12 sided polygon
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