Geometry - Points, Lines, Line Segments, and Planes - Angles - Parallel and Perpendicular Lines - Lines in the Coordinate Plane - Two-dimensional Figures - Triangles - Reasoning and Proofs Points, Lines, Line Segments, and Planes - Lines, Line Segments, and Rays - Properties of Planes, Lines, and Points - Describe Intersections in a Plane - Lengths of Segments on Number Lines - Additive Property of Length - Midpoints - Congruent Line Segments - Construct a Congruent Segment - Perpendicular Bisector Theorem - Midpoint Formula : Find the Midpoint - Partition a Line Segment in a Given Ratio - Midpoint Formula : Find the Endpoint - Distance Formula - Distance to the Origin in Three Dimensions - Construct the Midpoint or Perpendicular Bisector of a Segment - Points, Lines, Line Segments, and Planes: Assignment Angles - Angle Vocabulary - Angle Measures - Identify Complementary, Supplementary, Vertical, Adjacent, and Congruent Angles - Find Measures of Complementary, Supplementary, Vertical, and Adjacent Angles - Angle Diagrams : Solve for the Variable - Angle Bisectors - Construct an Angle Bisector - Construct a Congruent Angle - Proofs Involving Angles - Angles: Assignment Parallel and Perpendicular Lines - Concept of Parallel Lines, Skew Lines and Parallel Planes - Identifying Parallel and Perpendicular Lines - Transversal - Identifying Pair of Angles - Use Properties of Parallel Lines - Constructing Parallel Lines - Using Corresponding Angles Converse - Prove Theorems About Parallel Lines - Using Transitive Theory of Parallel Lines - Finding Distance from a Point to a Line - Construct Perpendicular Lines - Prove Theorems About Perpendicular Lines - Portioning a Directed Line Segment - Parallel and Perpendicular Lines: Assignment Parallel and Perpendicular Lines: Assignment - Revise the Concepts Lines in the Coordinate Plane - Coordinate Plane Review - Slopes of Lines - Graph a Linear Equation - Equation of Lines - Slopes of Parallel and Perpendicular Lines - Find the Distance Between a Point and a Line - Find the Distance Between Two Parallel Lines - Lines in the Coordinate Plane: Assignment Two-dimensional Figures - Polygon Vocabulary - Interior Angles of Polygons - Exterior Angles of Polygons - Construct an Equilateral Triangle or Regular Hexagon - Construct a Square - Two-dimensional Figures: Assignment Triangles - Classify Triangles - Triangle Angle-sum Theorem - Exterior Angle Theorem - Exterior Angle Inequality - Finding and Constructing Circumcenter of Triangle - Circumcenter Theorem - Construction - Using Incenter of a Triangle - Inscribing a Circle Within a Triangle - Use Medians and Find the Centroids of Triangle - Centroid Theorem - Using Altitude of a Triangle - Finding and Constructing Orthocenter of a Triangle - Proving a Property of Isosceles Triangles - Using the Mid segment of Triangle in Coordinate Plane - Using Triangle Mid Segment Theorem to Find Distance - Proving Theorems - Writing Indirect Proof - Ordering Angle Measures of a Triangle - Ordering Side Lengths of a Triangle - Triangle Inequality Theorems - Comparing Measures in Triangles - The Hinge Theorem - Proving Triangle Relationships - Triangles: Practice Reasoning and Proofs - Identify Hypotheses and Conclusions - Counterexamples - Conditionals - Negations - Converses, Inverses, and Contra-positives - Bi-conditionals - Truth Tables - Truth Values - Reasoning and Proofs: Assignment Reasoning and Proofs: Assignment - Revision the Concepts