GeoGebra Geometry

GeoGebra

About this app

Easily construct triangles, drag points, draw parallel lines, intersect circles, save and share your results. Millions of people around the world use GeoGebra to learn mathematics and science. Join us!

• Create constructions with points, lines, circles, polygons, and angles
• Explore interactive geometry by dragging points
• Measure lengths and areas
• Transform shapes by mirroring, rotating and dilating them
• Try advanced constructions with conics and locus lines
• Investigate construction steps to get deeper understanding
• Search for free learning activities directly from our app
• Save and share your results with others

We’d love to hear from you: send us your questions or feedback via Twitter @geogebra or to [e-mail]

Ratings and reviews

Great app! Can't believe this is free. So many tools I've probably used less than half of them. Some things I'd love to see: Dark mode. Please, my eyes! More customization, such as saving multiple custom settings, and custom tool groups. Ability to minimize the tool menu while still using a tool! More integrated layer functionality An easy way to redefine an object by it's position, staying in the same place but detaching from any connected construction

I love the Exam mode; however, I discovered a loophole. If a student uses text bubbles, those can stay open without causing an alert. Students can absolutely continue to text I've another during the exam.

Exceptionally good and very user friendly. But the recent update has kinda broken it. I can no longer load my saved files without it crashing, and sometimes the undo button crashes the app, and sometimes it just crashes randomly. Never had it happened to me before so I'm pretty sure it was the last update. 5★ when you fix it. Edit: Fixed.

What's new

• New feature: Autocomplete, which makes using commands easy and straightforward.
• You can now take pictures with your camera and insert them into your constructions.