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Geometry
A few terms.
13
Other
Not Applicable
12/13/2004

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Term
A median of a triangle
Definition
a segment that connects the a vertex of the triange to the midpoint of the side opposite that vertex
Term
an altitude of a triangle
Definition
a segment that extends from a vertex and forms perpendicular lines with the side opposite that vertex.
Term
the circumcenter of a triangle
Definition
The circumcenter of a triangle is point of concurrency of the three perpendicular bisectors of the triangle.
Term
the centriod of a triangle
Definition
The centriod of a triangle is the point of concurrency
of the three medians of the triangle.
Term
a perpendicular bisector of a segment
Definition
a line that is perpendicular the segment at its midpoint
Term
an exterior angle of a trinagle
Definition
an angle that forms a linear pair with an interior angle
Term
a linear pair
Definition
adjacent angles whose non common rays form a line
Term
Each point on the perpendicular bisector of a segmnet
Definition
is equidistant from the endpoints of that segment
Term
If a point on the interior of an angle is equidistant from the sides of that angle
Definition
it lies on the bisector of that angle
Term
in an isosceles triangle, the altitude from the vertex angle
Definition
is also the perpendicular bisector
Term
if two sides of a triangle are congruent
Definition
then the angles opposite those sides are congruent
Term
the acute angles of a right triangle are
Definition
complementary
Term
for any three non-collinear points
Definition
there is a unique plane containing them
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