**TI83F* AppVariable file 12/24/08, 18:37) )GLGE04 ) )nav 9AE51D1EC13445C5B24A00CF0B737DCFGLGE04.)GLGE041  acute triangleh&!Facute triangle:A triangle in which each angle measures less than 90. auxiliary lineTauxiliary line:An extra line or segmentdrawn in a figure to help complete a proof.  base angleD!abase angle:The equal angles formed by the base and the congruent sides of an isosceles triangle. congruence transformation^congruence transformation:A mapping for which a geometric figure and its image are congruent.  congruent#congruent:Having the same measure. congruent polygonsGcongruent polygons:Polygons in which allmatching parts are congruent. congruent trianglesMcongruent triangles:Triangles that have theircorresponding parts congruent. coordinate proofLcoordinate proof:A geometric proof that uses figures on a coordinate plane.   corollaryAcorollary:A statement that can be easily proved using a theorem.  corresponding parts:corresponding parts:Matching parts of congruent polygons.  equiangular triangle!=equiangular triangle:A triangle with three congruent angles.  equilateral triangle!aequilateral triangle:A triangle having all three sides congruent and all three angles congruent.  exterior angle#!yexterior angle:An angle that forms a linear pair with an angle of the triangle. In the figure, 1 is an exterior angle.  flow proofflow proof:A proof that organizes statements in logical order, starting with the given statements. Each statement is written in a box with the reason verifying the statement written below the box. Arrows are used to indicate the order of the statements. imageKimage:A figure that results from thetransformation of a geometric figure. included angle9!included angle:An angle formed by two given sides of a triangle. In the figure, A is the included angle of seg. AB and seg. AC .  included side9!yincluded side:A side common to two given angles of a triangle. In the figure, seg. AB is the included side of A and B. interior anglesWinterior angles:Angles that lie between two transversals that intersect the same line. isometryNisometry:A mapping for which the original figure and its image are congruent. isosceles triangleD!Aisosceles triangle:A triangle with at least two congruent sides. legs of an isosceles trianglePlegs of an isosceles triangle:The two congruent sides of an isosceles triangle. obtuse triangle!4obtuse triangle:A triangle having one obtuse angle. preimage9preimage:The graph of an object before atransformation.  reflection\reflection:A transformation representing aflip of the figure over a point, line, or plane. remote interior angles!remote interior angles:The angles in a triangle that are not adjacent to a given exterior angle of the triangle.In the figure, 2 and 3 are remote interior angles for exterior angle 4. right triangle"!!2right triangle:A triangle having one right angle. rotationrotation:A transformation that turns every point of a preimage through a specified angle and direction about a fixed point, called the center of rotation. scalene triangle!5scalene triangle:A triangle with no congruent sides. transformationtransformation:In a plane, a mapping for which each point has exactly one image point and each image point has exactly one preimage point.  translationhtranslation:A transformation that moves all points of a figure the same distance in the same direction.  vertex angle.vertex angle:The common endpoint of an angle.8` 9N0(  @=N 8R9L   (! @@@@  p""bBB 0 @00CBH B8!D p( 088`AD `J 1 SL ! UHiS& a `"% &1$P@0pBL@4@a !`   "10%  *)G@** 0 Q@008`d`  8@@ 0 0` @@` 0 0`  @@`9`  ' @P@ P H@ @@  @!_ @ 8` 0@  0@ 00@``` p  H?p H p8`@@ P  @@    @@@@   @@@@ !AA8`@`@ @   @@@ @ @  @@@ @ @ @8`@@  @P3VIP VJeJ` 5JEI@3520dBLB@@ @     @L@8` @@0@@   @@`` @ 0@0@@ 008`@`@ @  @@@@ @ @ @@@@ @  @ @.