**TI83F* AppVariable file 03/22/07, 10:03Ø@ —@GLM109—@•@nav BB89E8C391A14EE0A1ECD560CF6CB76EGLM109.GLM1091   acute angleø!Gacute angle:ÖAn angle with a measure greater than 0 and less than 90. acute triangleō=!Facute triangle:ÖA triangle in which each angle measures less than 90. angler!’angle:ÖA figure formed by two rays with a common endpoint. In the figure, RST is formed by rays SR and ST with the common endpointÖ(or vertex) S. complementary angles[!Šcomplementary angles:ÖTwo angles are complementary if the sum of their measures is 90. In the figure,Ö1 and 2 are complementary angles. congruent figures=congruent figures:ÖFigures that have the same shape and size. degree«degree:ÖThe 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 Ö1 degree, denoted as 1. equilateral triangles+!aequilateral triangle:ÖA triangle having all three sides congruent and all three angles congruent. isosceles triangle 6!Aisosceles triangle:ÖA triangle with at least two congruent sides.   line segmentQ;!Vline segment:ÖPart of a line containing two endpoints and all the points between them.   obtuse angle-&!Fobtuse angle:ÖAn angle that measures more than 90 but less than 180.  obtuse triangleŠ#!4obtuse triangle:ÖA triangle having one obtuse angle.   parallelogram".!Xparallelogram:ÖA quadrilateral with both pairs of opposite sides parallel and congruent.   quadrilateral+quadrilateral:ÖA polygon having four sides.  rectangle®8!2rectangle:ÖA parallelogram with four right angles. rhombusē !3rhombus:ÖA parallelogram with four congruent sides.  right angleÅ0!0right angle:ÖAn angle that measures exactly 90. right triangle!2right triangle:ÖA triangle having one right angle. scalene triangleD!5scalene triangle:ÖA triangle with no congruent sides. sides of an angleŠ(!dsides of an angle:ÖThe two rays that form an angle. In the figure, rays SR and ST are sides of RST. similar figuresTsimilar figures:ÖFigures that have the same shape but not necessarily the same size. square (geometric figure)ž![square (geometric figure):ÖA parallelogram with four congruent sides and four right angles. straight angle-straight angle:ÖAn angle that measures 180 . supplementary anglesĻ !Xsupplementary angles:ÖTwo angles are supplementary if the sum of their measures is 180.  tessellationWtessellation:ÖA repetitive pattern of polygons that fit together with no holes or gaps.  trapezoid”!Ltrapezoid:ÖA quadrilateral with exactly one pair of parallel opposite sides. vertex of an angleŠ(!Fvertex of an angle:ÖThe common endpoint of the rays forming the angle. vertical anglesh3!Švertical angles:ÖOpposite angles formed by the intersection of two lines. In the figure, the vertical angles are 1 and 3, and 2 and 4.8`€€€ `€0@€  Ą0`C€ €@ €  Ą 0Ą ’’’’’’’’’’ž0 8`€Ą@ ĄĄb@ ņ@ 4š Ą`< Ą"e¦` ¤€S` ˆ€RÕ@d˜€8D€Ą4Ķ@ €0ąĄÄ€ēĢą#ĄĄĄ0 Ą0 Ą 0" e¦Ą ¤0S Ą<ŒĄ4 8`€@@ €€ @P3VIP VJeJ` 5JEI@3520ˆd”Ā™BĀLB‚€@@ €@ą     ’’’üˆ”Ą™@ĄL@€8`  @@€€ @@€€ @€€ @@’’’’’’’ü8`€€€`€0@€ Ą `Ą žĄ8ąHˆ@`’’’’’’š`@8`€€’’’’’’Ą‚€@‚€@‚€@‚€@‚@žĄ€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@šų€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@€@žĄ‚@‚@‚€@‚€@‚€@’’’’’’Ą€€€8`€ÅA˜I‚”Ó E•RØĮTÉ @„!†1PER` |EQ@!Ą"*0A  €AĄĄ ’’’ł čĮ<ȁ°ŖB€ @‰ŒI DĢP c E‚3 € ā@ ’ %D@`1¤Ź@’’’©%%L@`)%%H€ µ˜¦€€€€@@ 0HąŲ„ 8Ā"t#’’’’’’ž@ą €@ąĄ€@€@€ b Ģ H@ ¤ĮJi ¢J©T`ŖdŠ Ą8`@`˜„€@ €@   @€@@€ €€@ €@  @@€€@€ €@ €@ @’’’’’’’’’’ž8`’’’’’’€€   @@@€ € € @@@€€:€€p   @@@€ € € @@€@€€’’’’’’€€€8`dˆ`€  8@Ą@€ 0Ą 0Ą`€ @@`€€€ 0Ą 0Ą` € @@`€€€’’’’’’’ž8`p0P@€€ @@€€ @@€€ @@€€?’’’’’’ž8`€Ą@ ĄĄb@ ņ@ 4š Ą`< Ą"e¦` ¤€S` ˆ€RÕ@d˜€8D€Ą4Ķ@ €0ąĄÄ€ēĢą#ĄĄĄ0 Ą0 Ą 0" e¦Ą ¤0S Ą<ŒĄ4 9`  €€Ą' @€€ P@  P H€€@ @@ €€ €€ˆ@!_’’’’’’ € @ €8`  Œ’’’’’’’ž  Œ  @€€ @@€ €€ @@€  €@@€€@  @@€ @@€ (B (c’’’’’’’ų(c(B8`€ü@`’’’’’’š`@8`p8`Xh€€@00 Ą€``€Ą 00 Ą€``€Ą  00 @ € ą€ @00Ą €€``€€ Ą00Ą €``€ Ą00@€€Xh`p88`€AD „Ŗ†`J É1 SL ‰! UHiš…S& €Ēaųƒˆ†€ `"Ąˆ% ”&1˜Ą$Pˆ€‘@0pBLĄ@4@a € !Ą` €  "1Šƒ0% € *“)¦G@Ėą*Š*¤ ż0 Q‚©“@€0Ą’’’’’’’’’’ąØ©0Ø 8`’’’’’’’’’’žA‚A‚A‚A‚A‚ž@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@žA‚A‚A‚A‚A‚’’’’’’’’’’ž8`8$8$8 < ?€ ü ’ą8ž’š’€ü<ü8`@`˜„€@ €@  @@€@@€ €€@ €@ @@@€€@€ €@ € @ @’’’’’’’’’’üÜr