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GSE Geometry Semester 1
01 Points, Lines and Planes
04 Angles
62 Translations
63 Rotations
Rotation of -90° clockwise about the origin (x, y) → (y, -x)Rotation of -180° clockwise about the origin (x, y) → (-x, -y)Rotation of -270° clockwise about the origin (x, y) → (-y, x)
Rotation
NOW YOU TAKE THE UNIT 1 QUIZ!!!!!
64 Reflections
For a reflection across the line y = -x,
Size and Reflections
Transformation – Nothing new in this less not covered in other lessons.32 Congruence Transformations
65 Compositions of Transformations
NOW YOU TAKE THE UNIT 2 QUIZ!!!!!
66 Dilations
Dilations - The scale factor k of a dilation is the ratio of the length in the image to the corresponding length in the
preimage (original image). (k = image length
pre−image length )
http://www.mathbitsnotebook.com/Geometry/Similarity/SMdilation.htmlk > 1 Enlargement 0 < k < 1 Reduction
k = 1 Same as the preimagek < 0 180 ° rotation and dilation by scale factor |k|
45 Similarity Transformations
39 Similar Polygons
∆ ABC ∆ XYZMeans that ¿ A <X¿ B <Y¿C <Z
75 Changing Dimensions
40 Proving Triangles Similar – AA, SSS and SASReflexive Property of Angle CongruenceAny angle is congruent to itself.
Substitution Property of EqualityDivision Property of EqualitySegment Addition Postulate
Corresponding Angles Postulate
05 Basic ConstructionsCongruent SegmentsCongruent AnglesAngle Bisectors
15 Geometric Proof – Part 1
16 Geometric Proof – Part 2
NOW YOU TAKE THE UNIT 3 QUIZ!!!!!
Unit 4 – 17 – Lines and Transversals
18 Angle Pair Theorems
20 Perpendicular Lines
21 More Geometric Constructions
26 Angles of Triangles
27 Congruence
28 Congruence Theorems and Postulates, SSS and SAS
29 Congruence Theorems and Postulates, ASA and AAS
30 Congruence Theorems and Postulates, HL
32 Congruence Transformations
NOW YOU TAKE THE UNIT 4 QUIZ!!!!!
Unit 5 - 33 Segments and Angles in Triangles
35 Constructing Special Points in Triangles
41 Right Triangle Similarity
42 Segments in Similar Triangles
44 Proportional Relationships
56 Parallelograms
57 Conditins for Parallelograms
60 Coordinate Geometry
NOW YOU TAKE THE UNIT 5 QUIZ!!!!!
Unit 6 – 46 The Pythogorean Theorem
47 The Converse of the Pythogorean Theorem
48 Special Right Triangles
NOW YOU TAKE THE UNIT 6 QUIZ!!!!!
Unit 7 – 49 The Tangent Ratio
50 The Sine and Cosine Ratios
sine = oppositehypotenuse cosine =
adjacenthypotenuse
51 Solving Right Triangles
52 Right Triangle Applications
NOW YOU TAKE THE UNIT 7 QUIZ!!!!!NOW YOU TAKE UNIT 1 - 7 Cumulative QUIZ!!!!!