This section is all about key geometric concepts, theorems, and proofs. Learn how to write mathematical arguments in the form of a two-column geometric proof and study the different properties of shapes by working through these insightful lessons.
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Main Lesson: Introduction to Geometry
A closer look at the history of geometry, the subject's applications, and the basic concepts of geometry.
Main Lesson: Lines and Angles
Learn about the most significant and basic components of geometry: lines and angles.
Main Lesson: Triangles
Study the different classifications, properties, and theorems of triangles.
Main Lesson: Quadrilaterals
Move on to the excitement of four-sided polygons called quadrilaterals. Learn about the different quadrilaterals that exist and the properties that make them special.
Main Lesson: Areas of Polygons and Circles
Use the the different properties of polygons we've studied in order to help find the areas of different figures.