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Geometry Midterm
n/a
10
Mathematics
9th Grade
01/26/2011
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Term
Pentagon
 Definition
-a polygon with 5 sides
Term
heptagon/septagon
 Definition
-polygon with 7 sides
Term
hexagon
 Definition

-polygon with 6 sides

 
Term
octagon
 Definition
-polygon with 8 sides
Term
nonagon/ennagon
 Definition
-polygon with 9 sides
Term
Decagon
 Definition
-polygon with 10 sides
Term
Sum of Interior Angles
 Definition
180(n-2)
Term
Circumcenter
 Definition

-the center of the circle that passes through each vertex

-intersection of 3 perpendicular bisector

 
Term
Centroid
 Definition
-intersection of 3 medians
Term
Incenter
 Definition
-the intersection of 3 angle bisectors
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