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This course is an introduction to the elements of geometry, including points, lines, planes, and angles. These elements are used in conjunction with triangles, polygonal and circular figures in both two and three dimensional configurations. This course is intended for students who have not had or completed two semesters of high school geometry or who need a refresher prior to taking trigonometry.
Note: New videos are consistently being populated.
This video continues introducing the basic building blocks for the successful study of geometry. This video reviews the basic concepts associated with sets. In addition, this video goes over 6 examples involving the union and intersection of geometric figures.
This video introduces the basic concepts associated with measurement of segments. Topics covered: Measuring Segments and Congruent Segments.
In this video we will start taking a look at simple examples that require us to find the length of segments and use the concept of congruent segments.
In this video we will go over 2 additional examples that involve congruent segments.
In this last video on measurement of segments we will go over 2 challenging examples involving congruent segments and plenty of algebra to solve.
In this video we will review how to name angles, we will then go over how to measure angles.
In this video we go over how to classify angles by sizes.
In this video we go over parts of a degree, and congruent angles.
In this video we will start going over simple examples involving measurement of angles.
In this video we will continue going over slightly more challenging examples involving parts of a degree.
In this video we will go over more examples involving parts of a degree and congruent angles.
In this video we will go over more challenging examples involving congruent angles and algebraic expressions.
In this video we will go over a problem that involves inequalities and a problem that has an algebraic expression as a solution.
In this final video on measurement of angles we will go over 2 final examples that require the use of algebra to solve.
In this video we will go over the concepts of collinearity, betweenness of points, triangle inequality, and assumptions from diagrams.
In this video we will go over 5 examples illustrating how to use the concepts of collinearity and betweenness of points.
In this video we will go over 3 slightly more challenging examples illustrating how to use the concepts of collinearity and triangle inequality.
In this final video we will go over 4 examples that involve angle measurements. We will be making assumptions from diagrams in order to solve these problems.
In this video we will learn how to write simple two-column proofs. We will first cover algebraic proofs, then we will go over the elements of an axiomatic system, the video ends with an introduction to geometric proofs.
Math Fortress provides great quality college level math videos, equation sheets, and worksheets.We have math videos for, Algebra I (Beginning Algebra), Algebra II (Intermediate Algebra), Geometry, Precalculus, Calculus I (Differential Calculus), Calculus II (Integral Calculus), Calculus III (Multivariable Calculus), Linear Algebra, Differential Equations, New York Regents Exam and the GRE.