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
• 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 [email protected]

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### What can I do with GeoGebra Geometry?

You can easily construct triangles, drag points, draw parallel lines, intersect circles, and explore interactive geometry. You can also measure lengths and areas, transform shapes, try advanced constructions with conics and locus lines, and investigate construction steps for a deeper understanding.

### How can I access learning activities on GeoGebra?

You can search for free learning activities directly from the GeoGebra app.
Angle with given size stuck at 45°
Little Master
Great
Sambhav Jain
Good
Vijaykumar 's. B.
Awesome
BINIL BALAN
Fabulous app. This is the app I'm looking for... Only correction I suggest is 'the basic tools is occupying 50 percent of screen you can decrease that icon size
Satish Pandu
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 ...
Khaled Ratul