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Welcome to Geometry

This course will make math come alive with its many intriguing examples of geometry in the world around you, from baseball to theater lighting to space exploration. Need a little extra help? Want a problem solving challenge? Click on the chapter links below to get lesson help, try an extra challenge, or explore application and career links.

Choose a chapter below.

Chapter 1: Basics of Geometry

 

Chapter 2: Reasoning and Proof

 

Chapter 3: Perpendicular and Parallel Lines

 

Chapter 4: Congruent Triangles

 

Chapter 5: Properties of Triangles

 

Chapter 6: Quadrilaterals

 

Chapter 7: Transformations

 

Chapter 8: Similarity

 

Chapter 9: Right Triangles and Trigonometry

 

Chapter 10: Circles

 

Chapter 11: Area of Polygons and Circles

 

Chapter 12: Surface Area and Volume