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  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
  • Euclidea
Description of Euclidea

Euclidea is a FUN & CHALLENGING Way to Create Euclidian Constructions!

> 127 Levels: from very easy to really hard
> 11 Tutorials
> 10 Innovative Tools
> "Explore" Mode and Hints
> Easily Drag, Zoom & Pan
> No Advertising!


New levels are unlocked as you solve the previous ones. You can complete the whole game only if you earn all the stars. But you can buy an IAP that removes this restriction.

“Euclidea has been shown to help with imagination, intuition, and logic, all wonderful skills to develop.” – appPicker

“Euclidea is an absolute joy to play…it’s a game that every math student should have and, in an ideal world, every adult should like.” – Non-Trivial Games

***About Euclidea***
Euclidea is a brilliantly original way to learn about, explore and have fun with Euclidian Constructions! Your task is to solve interesting challenges by building geometric constructions with a straightedge and compass. If you design the most elegantly simple solutions in the least number of moves, you’ll earn the highest scores. Solutions are scored in lines (L) and elementary Euclidean constructions (E).

***Start Simple and Get Smarter!***
Don’t worry if you aren’t a math wizard. Euclidea starts out with simple challenges that guide you through the basics. Once you master the fundamentals, you’ll move on to tougher, more mind-bending challenges such as inner/outer tangents, regular polygons, and more. There are 120 unique challenges in total, which are organized in packs for simpler navigation.

***Add Constructions to Your Interface***
When you learn certain significant constructions – such as angle bisectors, non-collapsing compass, and so on – they are automatically added to the Euclidea interface’s shortcut, which helps you save time and allows you to create clean, uncluttered drawings.

***Easily Drag, Pan & Zoom***
Euclidea-created constructions are completely dynamic. As such, you can drag to adjust angles, lines, radii and so on. You can also easily zoom and pan. This not only makes the experience more interactive, but it allows you to more deeply grasp the relationships between geometric elements, explore various possibilities, and analyze errors.

***Instant, Automatic Precision***
Don’t worry about spending time or effort trying to achieve perfect precision, because Euclidea automatically handles that task by pinning points, lines and circles to the app’s clean interface.

***Additional Special Features***
> A helpful “Explore” mode that allows you to see the figure you need to construct
> An inventory of tools that you create as you progress – you’ll need these to solve future challenges
> Some challenges can be solved in more than one way, which means you can try a different approach and have even more fun

***Questions? Comments?
Send in your inquiries and stay up-to-date on the latest Euclidea news at http://www.euclidea.xyz/

Version history Euclidea
New in Euclidea 4.38
v4.38

• Fixed bugs.

If you enjoy Euclidea, please leave a nice review on the store.
Happy solving!
New in Euclidea 4.33
v4.33

• Updated the number of moves for minimum solutions:

6.11 "Parallelogram by Three Midpoints"
12.8 "Hypotenuse and Altitude"

• Supported Slovak language. Тhanks to Peter Klein!

• Fixed bugs.

If you enjoy Euclidea, please leave a nice review in Play Store.
Happy solving!
New in Euclidea 4.29
v4.29

• Added 8 new challenges:
6.11 "Parallelogram by Three Midpoints"
7.8 "Circle Tangent to Three Lines "
10.12 "Center of Rotation "
12.8 "Hypotenuse and Altitude"
13.3 "Equilateral Triangle On Concentric Circles"
13.9 "Square by Four Points"
14.5 "Arbelos"
15.11 "Mickey Mouse"

• Level "Ratio 1 to 5" (10.9) moved from Kappa to Lambda (11.10).

• Fixed bugs.

If you enjoy Euclidea, please leave a nice review on the store.
Happy solving!
New in Euclidea 4.25
v4.25

• Fixed bugs.

If you enjoy Euclidea, please leave a nice review on the store.
Happy solving!
New in Euclidea 4.23
v4.23

• Level "Isosceles Triangle by Tangent Points" (3.10) moved from Gamma to Mu (12.9).
• Updated translations.
• Fixed bugs.

If you enjoy Euclidea, please leave a nice review on the store.
Happy solving!
New in Euclidea 4.17
v4.17

• Added Night Mode ($).

• Added educational animation to "Equilateral Triangle" level.

• Updated the number of moves for the minimum solutions:

3.10 "Isosceles Triangle by Tangent Points"
5.10 "Symmetry of Four Lines"
8.6 "Torricelli Point"

• Supported Polish language (thanks to Roman Matuła, Mateusz Zugaj, Dominik Tabisz, and Kuba Wolszczak!)

• Fixed bugs.

If you enjoy Euclidea, please leave a nice review on the store.
Happy solving!
New in Euclidea 4.13
v4.13

• Added 8 new challenges:

3.10 "Isosceles Triangle by Tangent Points"
6.10 "Symmetry of Four Lines"
8.5 "Triangle Cleaver"
8.6 "Torricelli Point"
8.7 "Circle Equidistant from Four Points"
11.9 "Point Farthest from Angle Sides"
12.6 "Equilateral Triangle by Centroid and Two Points"
13.7 "Line Reflection"

• Updated the number of moves for minimum solutions:

15.4 "Three Equal Segments"
15.8 "Line-Circle Intersection*"

• Fixed bugs
New in Euclidea 4.12
v4.13

• Added 8 new challenges:

3.10 "Isosceles Triangle by Tangent Points"
6.10 "Symmetry of Four Lines"
8.5 "Triangle Cleaver"
8.6 "Torricelli Point"
8.7 "Circle Equidistant from Four Points"
11.9 "Point Farthest from Angle Sides"
12.6 "Equilateral Triangle by Centroid and Two Points"
13.7 "Line Reflection"

• Updated the number of moves for minimum solutions:

15.4 "Three Equal Segments"
15.8 "Line-Circle Intersection*"

• Fixed bugs
New in Euclidea 4.08
v4.08• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store.Happy solving!
New in Euclidea 4.06
v4.06• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store.Happy solving!
New in Euclidea 3.50
v3.50• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.49
v3.49• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.43
v3.43• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.42
v3.42• Added hints• Added 8 new challenges• Removed challenge 5.5 ("Arithmetic Mean of Trapezoid Bases"):it was replaced by 2.8 and 8.12• Updated the number of moves for minimum solutions:11.3 "Triangle by Altitude Base Points"12.5 "Rhombus in Triangle"• Updated Greek and German resources• Fixed bugsIf you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.36
v3.36- Fixed localizations.If you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.35
v3.35- Fixed bugs.If you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.34
v3.34- Fixed bugs.If you enjoy Euclidea, please leave a nice review on the store. Happy solving!
New in Euclidea 3.30
v3.30- Your constructions can be saved and restored. All solutions are automatically saved.- Updated the number of moves for:5.5 "Arithmetic Mean of Trapezoid Bases"7.3 "Angle of 75°"- Now you can express your gratitude to us via IAP (choose "Settings -> Thanks to developers")- Fixed bugs
New in Euclidea 3.19
v3.19- Added possibility to proceed without IAP if you earn all stars in the opened packs- Updated the number of moves for minimum solution in 12.1 "Circle Tangent to Line and Circle"- Fixed bug with Explore mode
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