Explore geometry concepts including angles, shapes, transformations, and proofs with Khan Academy's engaging resources.

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

Learn triangle properties and geometry concepts with free lessons and practice on Khan Academy.

Learn about circles, their properties, equations, and applications through interactive lessons and exercises on Khan Academy.

High school geometry Course: High school geometry > Unit 1 Lesson 2: Introduction to rigid transformations Rigid transformations intro Dilations intro

Explore geometry concepts such as lines, angles, and shapes with interactive lessons and exercises on Khan Academy.

可汗学院提供几何学的免费学习资源，包括视频、练习题和测验，帮助学生掌握概念并提高技能。

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.

Learn eighth grade math, including geometry concepts like transformations, congruence, similarity, and the Pythagorean theorem. (aligned with Common Core standards)