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  1. Geometry (all content) - Khan Academy

    Geometry (all content) Unit 1: Lines Lines, line segments, and rays Measuring segments Parallel and perpendicular Points, lines, & planes Geometric definitions The golden ratio

  2. High school geometry - Khan Academy

    Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards).

  3. Basic Geometry | Khan Academy

    This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for the first time, …

  4. Geometry | 7th grade math | Khan Academy

    Geometric shapes are all around us. The world is built with them. In this series of tutorials and exercises you'll become familiar with Euclidean geometry and terms like scale drawings, parts of a circle, area, …

  5. Get ready for Geometry - Math | Khan Academy

    Get ready for high school geometry! Learn the skills that will set you up for success in congruence, similarity, and triangle trigonometry; analytic geometry; conic sections; and circles and solid geometry.

  6. Circles | Geometry (all content) | Math | Khan Academy

    Geometry (all content) 17 units · 180 skills Unit 1 Lines Unit 2 Angles Unit 3 Shapes

  7. Geometry | 8th grade math | Khan Academy

    Cylinder volume & surface area Volume of a sphere Volume of a cone Geometry: FAQ

  8. Angles | Geometry (all content) | Math | Khan Academy

    Geometry (all content) 17 units · 180 skills Unit 1 Lines Unit 3 Shapes Unit 4 Triangles

  9. Lines | Geometry (all content) | Math | Khan Academy

    Geometry (all content) 17 units · 180 skills Unit 1 Lines Unit 2 Angles Unit 3 Shapes

  10. Transformations | Geometry (all content) | Math | Khan Academy

    Geometry (all content) 17 units · 180 skills Unit 1 Lines Unit 2 Angles Unit 3 Shapes