• GeoGebra Geometry 1
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GeoGebra Geometry

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 [email protected]

Category : Education

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Reviews (27)

Gra. S. Feb 1, 2022     

Sorta works. Undo button makes the screen jump around it also doesn't actually undo anything (at least I haven't been able to consistently make it do that). Trying to use compass on a segment followed by a point often doesn't do anything. Measuring angle between three points works but doesn't when selecting two segments. The show hide labels function sometimes randomlly turns everything to show again after working for a while. A plethora of bugs such as these. I would recommend a different app

Mic. K. Apr 14, 2022     

very annoying bug: pressing backspace removes eventually everything in edit fields (works like backspace was held and autorepeats) edit: as far as I can see the bug has gone in newest version

Ign. L. Dec 15, 2021     

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

Ron. d. L. Aug 19, 2021     

Seems like a powerful package for visually constructing calculations, but it's got a learning curve: you can't just click somewhere, but have to really know what you're doing with that click. Sketchometry (web version) is much easier to get started with, but its drawing tools are put away in inconvenient, non-intuitive fragments, making you click a lot hence-and-forth.

Kha. R. Jul 1, 2020     

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.

Car. M. S. Mar 19, 2022     

Whenever I press undo the view gets messed up and I have to zoom and pan again

Luk. P. Jun 9, 2021     

Many needed functions for the app and the windows version. It is EXTREMELY recommended to include "disable labelling for ALL points", "set ALL points to desired state upon drawing without having to click them manually after finish drawing geometry or clicking them one by one", "set ALL circles to desired state upon drawing as well", and PLEASE FIX the colors. It's a pain when the colors don't automatically mix when colored lines cross each other or solid circles overlapped on SAME layer.

Bra. V. Feb 27, 2022     

Very great app, only problem while using is I find the menu to be a bit of a pain, scrolling takes up time switching and exploring app capabilities and it takes up a lot if space. Very clean otherwise. Does as it says.

Ian. N. Apr 12, 2020     

I literally taught myself trigonometry using this app. It has some kinks, like the settings randomly jumping back to defaults, and not being able to manually adjust the awkward positioning of labels... But on the whole, it's the best app that I've found of its type.

Jaw. A. Feb 26, 2022     

accurate and easy to use and understand. well polished and visually pleasing.

Sco. A. Feb 16, 2021     

Does what it says. I would love to see an image overlay feature added so we can place maps behind the grid, then we can draw/trace/plan shapes atop of them. And also an option to independantly invert axis directions. This would be useful to minecrafters where the y axis is inverted (north = negative)

Elt. L. Dec 2, 2019     

It is good, but can we draw the circle just a part and not a full circle? Because it is too complicated to look when it has many circle. Other than that, can we capture a length as radius and draw a circle on the other place because it seems we can only draw the circle at the same point only.

A. G. u. Dec 16, 2018     

Easy to use, with good touch controls. It's missing some of the web functionality, but nothing noticed more than once or twice.

Sud. K. Jul 16, 2021     

Very nice app But please also add a complex plane In which conic sections can be drawn . ( I don't have any computer but on this app i can draw graph understand things Very easily on my phone ,but facing problem with complex no. ) Thank very much geogebra

car. Oct 2, 2019     

Best geometry app. However it is hard to put dots on smaller screen, can you make it so when you place a dot, it is not right behind the finger and I can't see it

Han. H. Feb 26, 2022     

The only thing about it is the textsthe name of each point line is not actually a PNG it has some white background that can come over another text

D.. N. A. Mar 6, 2022     

This app needs to be more intuitive and complete.

Sab. P. Jun 3, 2020     

It is a very good geometry app. But I think there must be a tool "circular arc with center & radius ",to draw a arc with particular radius . And there must be a section of "favourite tools" to find tools fast. Please do this . I love this app.

ous. s. Feb 11, 2020     

Very good app except I can't delete specific segments or arcs after constructing my geometric shape. For example if u construct a square, u can't delete only one side from it, u gotta delete all. Plz fix. Thank you

Bob. P. Aug 31, 2020     

Excellent app for me to take online classes..can you include the option to find out area of a sector. One more thing is that when we create a polygon then the naming letters of polygon is not well arranged, also we cannot move the letters in proper place.

Dib. R. Oct 10, 2019     

Please add function to download the image in different sizes , as i need small images. If i resize the image downloded from the app it loses its quality and text are not visible.

Sai. A. Feb 6, 2019     

the circles doesn't show once I make them, I must hit the (step back) button then the (step forward) one for the circles to appear, the app is great & I love it.

Arm. May 6, 2020     

Surpassed my expectations. Easy to use. Way better than any alternative!!!! I came back after a few days of use to add this written testimony. I love GeoGebra Geometry!!! I've uninstalled any other similar app such as the useless products of Adobe.

Phi. E. Jul 27, 2021     

I've tried many apps and most were a waste of time. I just got started on GeoGebra and I must say that this app is very intuitive and has ALL of the many tools I need that were missing in other apps.

AST. 6. Mar 6, 2020     

Awesome tool. Easy to work with and intuitive. 5 stars deserved. But the small problem is that the settings don't apply

Rea. T. Oct 12, 2020     

It is very good geometry app I solved the questions of dividing the line segment in given ratio I want to rate it 100 stars but there is no feature but I like it very much 💯😍🤩🥰 I will try your other apps your apps are the bestest ever 😊

Thú. N. T. Nov 28, 2019     

Custom tools please! Constructing the incircle is such a pain. Also can you pin the most used tools in one place so that you don't have to scroll through all the tools