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.

Throws into Geometry Dash Wave, a neon-drenched arcade game of pulsating beats and gravity-defying slides. Let’s surf through the wave platformer!

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

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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!

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! They have two …