Welcome to the Geometry Page of KensMathWorld.com.

You may now access any of my algebra or geometry videos for free.  If you have any problems, just send me an email to kenkreidersmail@yahoo.com. On this website, you will find a complete curriculum of videos and worksheets for algebra and geometry. Feel free to use them for homeschooling or supplementary material.

 

 

About the Videos

If a video does not cover the information adequately, or if you are not able to find a video on the concept that you are looking for, just send me an email and I will either make a video for you or respond with the information that you need.


 

 

GEOMETRY

CH 4    CH 8    CH 12 FORMAT
CH 1 Tools of Geometry PDF CW TE
1-1 Patterns and Inductive Reasoning PDF VID QZ
1-2 Drawings, Nets, and Other Models   VID QZ
1-3 Points, Lines, and Planes PDF VID QZ
1-4 Segments, Rays, Parallel Lines and Planes

PDF

PDF 

VID QZ
1-5 Measuring Segments   VID QZ
1-6 Measuring Angles PDF
VID QZ
1-7 Basic Constructions PDF
VID QZ
1-8 The Coordinate Plane PDF VID QZ
1-9 Perimeter, Circumference, and Area PDF VID QZ
CH 2 Reasoning and Proof   CW TE
2-1 Conditional Statements PDF VID QZ
2-2 Biconditionals and Definitions PDF VID QZ
2-3 Deductive Reasoning PDF VID QZ
2-4 Reasoning in Algebra

PDF

PDF 

PDF 

VID QZ
2-5 Proving Angles Congruent PDF VID QZ
CH 3 Parallel and Perpendicular Lines   CW TE
3-1 Properties of Parallel Lines PDF VID QZ
3-2 Proving Lines Parallel PDF VID QZ
3-3 Parallel and Perpendicular Lines PDF VID QZ
3-4 Parallel Lines and the Triangle Angle-Sum Theorem PDF VID QZ
3-5 The Polygon Angle-Sum Theorems PDF VID QZ
3-6 Lines in the Coordinate Plane   VID QZ
3-7 Slopes of Parallel and Perpendicular Lines   VID QZ
3-8 Constructing Parallel and Perpendicular Lines PDF VID QZ
CH 4 Congruent Triangles   CW TE
4-1 Congruent Figures PDF VID QZ
4-2 Triangle Congruence by SSS and SAS PDF VID QZ
4-3 Triangle Congruence by ASA and AAS PDF VID QZ
4-4 Using Congruent Triangles: CPCTC PDF VID QZ
4-5 Isosceles and Equilateral Triangles PDF VID QZ
4-6 Congruence in Right Triangles PDF VID QZ
4-7 Proving Triangles Congruent PDF VID QZ
CH 5 Relationships Within Triangles   CW TE

 

Classifying Triangles and The Triangle Angle Sum Theorem

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5-1 Midsegments of Triangles PDF VID QZ
5-2 Bisectors in Triangles PDF VID QZ
5-3 Concurrent Lines, Medians, and Altitudes PDF VID QZ
5-4 Inverses, Contrapositives, and Indirect Reasoning   VID QZ
5-5 Inequalities in Triangles PDF VID QZ
CH 6 Quadrilaterals   CW TE
6-1 Classifying Quadrilaterals PDF VID QZ
6-2 Properties of Parallelograms PDF VID QZ
6-3 Proving That a Quadrilateral is a Parallelogram PDF VID QZ
6-4 Special Parallelograms PDF VID QZ
6-5 Trapezoids and Kites PDF VID QZ
6-6 Placing Figures in the Coordinate Plane   VID QZ
6-7 Proofs Using Coordinate Geometry   VID QZ
CH 7 Similarity   CW TE
7-1 Ratios and Proportions PDF VID QZ
7-2 Similar Polygons PDF VID QZ
7-3 Proving Triangles Similar   VID QZ
7-4 Similarity in Right Triangles   VID QZ
7-5 Proportions in Triangles   VID QZ
CH 8 Right Triangles and Trigonometry   CW TE
8-1 The Pythagorean Theorem and Its Converse PDF
VID QZ
8-2 Special Right Triangles PDF VID QZ
8-3 The Tangent Ratio   VID QZ
8-4 Sine and Cosine Ratios   VID QZ
8-5 Angles of Elevation and Depression   VID QZ
8-6 Vectors   VID QZ
CH 9 Transformations     Worksheets for this chapter => PDF CW TE
9-1 Translations   VID QZ
9-2 Reflections   VID QZ
9-3 Rotations   VID QZ
9-4 Symmetry   VID QZ
9-5 Dilations   VID QZ
9-6 Compositions of Reflections   VID QZ
9-7 Tessellations   VID QZ
CH 10 Area   CW TE
10-1 Areas of Parallelograms and Triangles PDF VID QZ
10-2 Areas of Trapezoids, Rhombuses, and Kites PDF VID QZ
10-3 Areas of Regular Polygons PDF VID QZ
10-4 Perimeters and Areas of Similar Figures   VID QZ
10-5 Trigonometry and Area   VID QZ
10-6 Circles and Arcs   VID QZ
10-7 Areas of Circles and Sectors PDF VID QZ
10-8 Geometric Probability   VID QZ
CH 11 Surface Area and Volume   CW TE
11-1 Space Figures and Cross Sections   VID QZ
11-2 Surface Areas of Prisms and Cylinders

PDF

PDF

VID QZ
11-3 Surface Areas of Pyramids and Cones   VID QZ
11-4 Volumes of Prisms and Cylinders   VID QZ
11-5 Volumes of Pyramids and Cones PDF VID QZ
11-6 Surface Areas and Volumes of Spheres   VID QZ
11-7 Areas and Volumes of Similar Solids   VID QZ
CH 12 Circles   CW TE
12-1 Tangent Lines   VID QZ
12-2 Chords and Arcs PDF VID QZ
12-3 Inscribed Angles   VID QZ
12-4 Angle Measures and Segment Lengths   VID QZ
12-5 Circles in the Coordinate Plane   VID QZ
12-6 Areas of Sectors and Segments;  Locus: A Set of Points PDF VID QZ
End of Course Test     TE