**TI83F* AppVariable file 04/07/08, 15:061 1MC21011nav F441BD13B950415AA7EB861D73925D5FMC210.'MC2101   acute anglew!Gacute angle:An angle with a measure greater than 0 and less than 90. angle!angle:A figure formed by two rays with a common endpoint. In the figure, RST is formed by rays SR and ST with the common endpoint(or vertex) S.  circle graphYcircle graph:A graph that compares parts of a set of data as a percent of the whole set.  circumference,circumference:The distance around a circle. complementary angles!complementary angles:Two angles are complementary if the sum of their measures is 90. In the figure,1 and 2 are complementary angles. congruent angles1congruent angles:Angles with the same measure.  congruent figures=congruent figures:Figures that have the same shape and size. degreedegree:The most common unit of measure for angles. If a circle were divided into 360 equal-sized parts, each part would have an angle measure of 1 degree, denoted as 1.  hexagon$hexagon:A polygon having six sides.  indirect measurementJindirect measurement:A technique using proportions to find a measurement.  line of reflectionFline of reflection:The line a figure is flipped over in a reflection.  line of symmetry!!bline of symmetry:A line that divides a figure into two halves that are reflections of each other.   line symmetryQline symmetry:Figures that match exactly when folded in half have line symmetry.  obtuse angle$!Fobtuse angle:An angle that measures more than 90 but less than 180. octagon&octagon:A polygon having eight sides.  parallelogram)!Xparallelogram:A quadrilateral with both pairs of opposite sides parallel and congruent. pentagon&pentagon:A polygon having five sides. polygonQpolygon:A simple closed figure in a plane formed by three or more line segments.  quadrilateral+quadrilateral:A polygon having four sides.  reflection`!Rreflection:A transformation in which a figure is flipped over a line of symmetry. regular polygon!Qregular polygon:A polygon that has all sides congruent and all angles congruent. rhombusx,!3rhombus:A parallelogram with four congruent sides.  right angleI!0right angle:An angle that measures exactly 90. similar figuresTsimilar figures:Figures that have the same shape but not necessarily the same size. straight angle-straight angle:An angle that measures 180 . supplementary angles !Xsupplementary angles:Two angles are supplementary if the sum of their measures is 180.  tessellationWtessellation:A repetitive pattern of polygons that fit together with no holes or gaps. transformation_transformation:A mapping or movement of a geometric figure that changes its shape or position.  translation!Itranslation:A transformation in which a figure is slid in any direction.  trapezoid/!Ltrapezoid:A quadrilateral with exactly one pair of parallel opposite sides. triangle'triangle:A polygon having three sides.  vertex of an angle2'!Fvertex of an angle:The common endpoint of the rays forming the angle.8` `0@  0`C @    0 0 8`  @@ @@ @ @@8`p~@ @    @ @@ @ @@@?@      @ @ @@@ 0@ 0 0 @@` @a8`@ b@ @ 4 `< "e` S` R@d8D4@ 0Ā#0 0  0" e 0S <4 8`@@   @@  @@~@ @  @   @@@  @@@  8`0L0x`X @0 @  @@ @@@@@@@@@  4b|# }G8``0@  ` 8H@``@8`@``@8`` ` @@       @@@@@@ @ e@` V% T$ `S  @ @UY%UUQ%@UM0 `8`p0P@ @@ @@ @@?8`@ b@ @ 4 `< "e` S` R@d8D4@ 0Ā#0 0  0" e 0S <4 8`  @ @@  @@  @@@  @@ @@ (B (c(c(B8`   @@@ @@@:p   @@@ @@@8`AI ERTɠ@!1PER` |EQ@!"*0A  A  <B @I DP c E3  @ %D@`1@%%L@`)%%H @@ 0H 8"t#@ @@@ b H@ Ji JT`d p