- Khan Academy | Khan Academy
Explore geometry concepts including angles, shapes, transformations, and proofs with Khan Academy's engaging resources
- High school geometry - Khan Academy
Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards)
- 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, consider using the grade-level courses for more in-depth instruction
- 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, angles, and geometric figures
- Geometry | 8th grade math | Khan Academy
Cylinder volume surface area Volume of a sphere Volume of a cone Geometry: FAQ
- Lines | Geometry (all content) | Math | Khan Academy
Lines, line segments, and rays Learn Euclid as the father of geometry Terms labels in geometry Lines, line segments, rays Identifying rays
- Angles | Geometry (all content) | Math | Khan Academy
Parallel perpendicular lines Missing angles with a transversal Parallel lines corresponding angles proof Missing angles (CA geometry) Proving angles are congruent Proofs with transformations
- 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
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