# Geometry

## List of Concepts Taught in Geometry

Every mathematics textbook and website is organized in a different manner. However, each contains the same concepts. Use your class notes and textbook to help you determine the concept you are currently studying.

You can use the terms below to help you search for Geometry concepts:

 Geometry Basics Points, lines, planes, rays, angles, polygons , circles   Transformations Reflection, Translation, Rotation Applications of Transformations   Angle and Line Relationships Angle Types: Vertical, corresponding, complementary, supplementary, right, linear pair Parallel and perpendicular lines   Construction Duplicating segments and angles Perpendicular bisectors Perpendiculars to a line Angle bisectors Parallel lines Transformations using construction Points of Concurrency   Triangle and Polygon Properties Triangle and Polygon Sum Proving triangles congruent Exterior Angles Kite and Trapezoid Properties Parallelograms and special parallelograms Proving Quadrilateral properties Properties of Midsegments Triangle Congruence Triangle Similarity Circle Properties Tangents, Chords, Arcs, Angles Circumference, Diameter   Pythagorean Theorem Proof and converse Special right triangles Applications   Area and Volume 2-d Area: triangles, quadrilaterals, polygons 3-d Volume: prisms, cylinders, pyramids, cones, spheres   Trigonometry Trig ratios Solving right triangles Law of Sines Law of Cosines   Reasoning and Proof Inductive and Deductive Reasoning Geometric Proofs

## Geometry Online Review & Practice

 Website Explanations Written/Video Online Practice Print Worksheets Regents Prep http://www.regentsprep.org/regents/math/geometry/math-geometry.htm Written Yes Yes Math is Fun http://www.mathsisfun.com/geometry/ Written Yes Khan Academy https://www.khanacademy.org/math/geometry Video Sophia Learning https://www.sophia.org/subjects/geometry Video Yes IXL Math Practice https://www.ixl.com/math/geometry Answer 20 questions per day for free, Subscription required for unlimited use Written Yes SparkNotes http://www.sparknotes.com/math/ Written Yes Math Open Reference http://www.mathopenref.com/ Written Click and drag activities AAA Math http://www.aaamath.com/geo.htm Written Yes Math Bits http://mathbitsnotebook.com/Geometry/Geometry.html Written yes 