Learn geometry—angles, shapes, transformations, proofs, and more.

Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician who works in the field of geometry is called a geometer.

Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!

Geometry is all about shapes and their properties. If you like playing with objects, or like drawing, then geometry is for you!

Geometry, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.

Essential stuff for describing the world around you. 1. Lines and angles. 2. Related angles. What about angles bigger than 360 degrees? 3. Triangles. See if it's really true, and then prove it! …

Geometry is a part of mathematics that deals with the relationships of points, lines, angles, surfaces, solids measurement, and properties. There are two types of geometry: 2D or plane …

Challenge your reflexes in Geometry Dash, a rhythm-based action platformer with endless player-created levels! Jump, fly & conquer unique challenges. Play now!

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

Get ready to jump, fly, and dash your way through danger-filled levels synced to an epic soundtrack. Experience the infectious music, vibrant visuals, and notoriously tough gameplay …