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Websites for Geometry
Dictionaries –
Dictionary: http://library.thinkquest.org/2647/geometry/glossary.htm
Dictionary: http://www.coolmath.com/reference/online-math-dictionary.html
Flash Cards: http://quizlet.com/9707493/algebra-vocabulary-flash-cards/
Foundations of Geometry –
Undefined Terms - Points, Lines, & Planes, Collinear, Coplanar Points, Intersecting Lines in
Space, Skew Lines, Angles & Pairs of Angles
Complete list of Geometry Topics: http://www.mathsisfun.com/geometry/index.html
Undefined Terms: http://www.gradeamathhelp.com/undefined-terms-in-geometry.html
Pairs of Angles:
http://www.wyzant.com/Help/Math/Geometry/Lines_and_Angles/Pairs_of_Angles.aspx
Complete list of Geometry Topics: http://www.mathopenref.com/index.html
Distance & Midpoint Formulas
Distance Formula: http://www.purplemath.com/modules/distform.htm
Distance Formula:
http://www.regentsprep.org/regents/math/geometry/GCG3/Ldistance.htm
Midpoint: http://www.mathopenref.com/coordmidpoint.html
Constructions –
Copy Angle, Copy Line Segment, Bisect Line Segment, Bisect an Angle, Perpendicular
from a point on a line, Perpendicular from a point not on a line, Perpendicular Bisector,
triangle inscribed in a circle, square inscribed in a circle, & triangle circumscribed
about a circle
Construction : http://www.mathopenref.com/tocs/constructionstoc.html
Construction: http://www.regentsprep.org/Regents/math/geometry/GC1/construct.htm
Logic Inductive Reasoning, Conjectures, Counterexamples
Logic – Truth Values, Conjunction, Disjunction, Truth Tables and Venn Diagrams
Conditional Statement, If Then Form, Converse, Inverse, & Contrapositive
Deductive Reasoning, Law of Detachment, & Law of Syllogism
Logic: http://www.regentsprep.org/regents/math/geometry/GP1/indexGP1.htm
Related Conditionals:
http://www.regentsprep.org/regents/math/geometry/GP2/indexGP2.htm
Flash Cards: http://quizlet.com/69915/geometry-logic-flash-cards/
Venn Diagrams:
http://www.learner.org/courses/learningmath/geometry/session3/part_b/game.html
Parallel & Perpendicular Lines
Alternate Interior, Alternate Exterior, & Corresponding Angles, Interior Angles on Same
Side of Transversal, Proving Lines Parallel & Perpendicular, Slopes
Parallel Lines & Pairs of Angles: http://www.mathsisfun.com/geometry/parallel-lines.html
Slope: http://www.mathopenref.com/coordslope.html
Congruent Triangles
Classifying Triangles by Sides and Angles, Sum of Angles of Triangles – Angle Sum
Theorem, Exterior Angle Theorem, Congruent Triangles- Name Corresponding Parts,
Proving Congruence – SSS, SAS, ASA, AAS, HL, & CPCTC
Complete list of Geometry Topics: http://www.cliffsnotes.com/math/geometry
Exterior Angle of Triangle:
http://www.regentsprep.org/regents/math/geometry/GP5/LExtAng.htm
Interactive SAS Proof: http://www.geogebratube.org/student/m2744
Triangles and Their Relationships
Isosceles and Equilateral Triangles – Properties, Perpendicular Bisectors, Angle Bisectors,
Medians, Altitudes of Triangles, Concurrency, Centroid, Incenter, Circumcenter &
Orthocenter
Isosceles Triangle:
http://www.regentsprep.org/Regents/math/geometry/GP6/Lisosceles.htm
Concurrency:
http://www.regentsprep.org/Regents/math/geometry/GC3/LConcurrence.htm
Inequalities and Triangle
Triangle Inequality – Largest Side and Largest Angle, Range for length of side of a triangle,
Inequalities Involving Two Triangles – SAS, SSS, Triangle Inequality Theorem, Shortest
Distance Between a Point and a Line
Triangle Inequality: http://library.thinkquest.org/20991/geo/tri_i.html
Triangle Inequality Proof: http://www.basic-mathematics.com/triangle-inequality-theoremproof.html
Triangle Inequalities:
http://www.regentsprep.org/Regents/math/geometry/GP7/LTriIneq.htm
Similarity
Ratios, Proportions – Properties and Scale Factors, Similar Polygons, Similar Triangles –
AA, SSS, SAS, Parallel Lines & Proportional Parts – Divides Segments into Parts,
Proportional Parts - Corresponding Perimeter, Medians, Altitudes & Angle Bisectors have
same ratio, Proportional Parts of 1 Triangle – Angle Bisector divides one side into
proportional parts
Similarity: http://www.mathsisfun.com/geometry/triangles-similar.html
Similarity: http://www.mathsisfun.com/geometry/triangles-similar-theorems.html
Right Triangles
Geometric Mean, Rationalize the denominator, Parts of a Right Triangle, Altitude is
geometric mean, Leg is geometric mean, Pythagorean Theorem and Converse, Special
Right Triangles – 30 – 60 – 90 and 45 – 45 – 90
Pythagorean Th, 30-60-90, 45-45-90, Trigonometry:
http://library.thinkquest.org/20991/geo/stri.html
Pythagorean Th, 30-60-90, 45-45-90, Trigonometry:
http://www.coolmath.com/reference/triangles-geometry.html
Trigonometry
Sine, Cosine, Tangent, Finding measure of angle, Angles of Elevation & Depression
Trig Ratios: http://www.coolmath.com/reference/triangles-trigonmetry.html
Trig Ratios: http://www.mathsisfun.com/sine-cosine-tangent.html
Quadrilaterals
Angles of Polygons, Interior Angles Sum, Exterior Angles Sum, Compare and Contrast the
Properties, Diagonals, Altitudes, and Medians of Quadrilaterals, Parallelograms, Rectangles,
Rhombi, Squares, Trapezoids and Kites
Interior Angles of Polygons: http://www.coolmath.com/lesson-interior-angles-of-polygons1.htm
Interior Angles of Polygons: http://www.mathsisfun.com/geometry/interior-anglespolygons.html
Quadrilaterals:http://www.mathsteacher.com.au/year8/ch09_geometry/07_quad/quad.htm
Kites Interactive: http://www.geogebratube.org/student/m288
Circles
Parts, Circumference, and Arc Length, Angles and Arcs – Major Arc, Minor Arc, Semicircle,
Central Angle, Arcs and Chords, Tangents, Inscribed Angles Secants, Tangents, and Angle
Measures, Special Segments in Circles
Circles and Trig: http://www.coolmath.com/reference/geometry-trigonometryreference.html
Sector of Circle: http://www.coolmath.com/reference/circlestrigonometry.html#A_sector_of_a_circle
Circles: http://www.khanacademy.org/math/geometry/circles
Transformations
Reflections – Lines of Symmetry and Point of Symmetry, Translations, Rotations, Regular
Tessellations, Dilations – Enlarge, Reduce, or Congruent Transformation – Scale Factor
Transformations: http://www.mathsisfun.com/geometry/transformations.html
Symmetry: http://www.mathsisfun.com/geometry/symmetry-artist.html
Line Symmetry:
http://www.learner.org/courses/learningmath/geometry/session7/part_a/index.html
Rotation Symmetry:
http://www.learner.org/courses/learningmath/geometry/session7/part_b/index.html
Area, Surface Area, & Volume
Area of Parallelograms, Triangles, Trapezoids, and Rhombi, Area of Circles and Sectors,
Three Dimensional Figures and Nets, Surface Area & Volume of Prisms, Cylinders, Pyramids,
Cones & Spheres, Similar Solids
Nets, Surface Area & Volumes of Solid Figures:
http://www.learner.org/interactives/geometry/3d_prisms.html
Surface Area & Volumes of Solid Figures: http://www.shmoop.com/basic-geometry/threed-prisms-cylinders-cones-spheres.html
Surface Area Cylinder: http://www.mathopenref.com/cylinderarea.html
Volume & Surface Area Sphere: http://video.about.com/math/Volume-and-Surface-Areaof-a-Sphere.htm
Surface Area & Volumes of Solid Figures:
http://www.regentsprep.org/Regents/math/geometry/GG2/indexGG2.htm
Solid Figures: http://www.mathplanet.com/education/pre-algebra/area-andvolume/pyramids,-prisms,-cylinders-and-cones
Review Tests
Test Nav SOL Test:
https://vastatic.testnav.com/vatrngqc/testnav7.5.10.58/epatLogin.jsp?testnavTestId=EOC121&testnavFormId=Practice%20Test
SOL Pass:
http://www.solpass.org/released.html
Jefferson Lab:
http://education.jlab.org/solquiz/
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