What's New

• Supported Slovak and Bengali languages. Thanks to Peter Klein and Mohammad Habibullah Rakib!

• Fixed bugs.

App Description

Check how well you know the geometry by solving construction problems on a triangular grid.

> 300+ tasks: from very simple to really hard
> 26 subjects to explore
> 70+ geometric terms in a glossary
> Easy to use
> Table of records in the Game Center

*** About ***
Pythagorea 60° is a collection of more than 300 geometric problems of different kind that can be solved without complex constructions or calculations. All objects are drawn on a grid whose cells are equilateral triangles. A lot of levels can be solved using just your geometric intuition or by finding natural laws, regularity, and symmetry.

*** Just play ***
There are no sophisticated instruments and moves are not counted. You can construct straight lines and segments only and set points in line intersections. It looks very easy but it is enough to provide an infinite number of interesting problems and unexpected challenges.

*** Is this game for you? ***
Euclidea users can take a different view of constructions, discover new methods and tricks, and check their geometric intuition.

Pythagorea users who played on a square grid will not be bored. The triangular grid is full of surprises.

If you have just started your acquaintance with geometry, the game will help you understand important ideas and properties of the Euclidean geometry.

If you passed the course of geometry some time ago, the game will be useful to renew and check your knowledge because it covers most of ideas and notions of the elementary geometry.

If you are not on good terms with geometry, Pythagorea 60° will help you to discover another side of the subject. We get a lot of user responses that Pythagorea and Euclidea made it possible to see the beauty and naturalness of geometric constructions and even fall in love with geometry.

And do not miss your chance to familiarize children with mathematics. Pythagorea is an excellent way to make friends with geometry and benefit from spending time together.

*** All definitions at your fingertips ***
If you forgot a definition, you can instantly find it in the app’s glossary. To find the definition of any term that is used in conditions of a problem, just tap on the Info (“i”) button.

*** Main topics ***
> Length, distance, and area
> Parallels and perpendiculars
> Angles and triangles
> Angle and perpendicular bisectors, medians, and altitudes
> Pythagorean Theorem
> Circles and tangents
> Parallelograms, trapezoids, and rhombuses
> Symmetry, reflection, and rotation

*** Why Pythagorea ***
Pythagoras of Samos was a Greek philosopher and mathematician. He lived in 6th century BC. One of the most famous geometric facts bears his name: the Pythagorean Theorem. It states that in a right triangle the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of those of the two other sides. While playing Pythagorea you often meet right angles and rely on the Pythagorean Theorem to compare lengths of segments and distances between points. That is why the game is named after Pythagoras.

*** Questions? Comments? ***
Send in your inquiries and stay up-to-date on the latest Pythagorea 60° news at https://www.euclidea.xyz/

iPhone Screenshots

(click to enlarge)

Pythagorea 60° screenshot 1 Pythagorea 60° screenshot 2 Pythagorea 60° screenshot 3 Pythagorea 60° screenshot 4 Pythagorea 60° screenshot 5

iPad Screenshots

(click to enlarge)

Pythagorea 60° screenshot 6 Pythagorea 60° screenshot 7 Pythagorea 60° screenshot 8 Pythagorea 60° screenshot 9 Pythagorea 60° screenshot 10

App Changes

  • November 12, 2015 Initial release
  • December 03, 2015 Price increase: FREE! -> $0.99
  • December 14, 2015 Price decrease: $0.99 -> FREE!
  • January 02, 2016 Price increase: FREE! -> $0.99
  • January 20, 2016 Price decrease: $0.99 -> FREE!
  • January 25, 2016 Price increase: FREE! -> $0.99
  • February 09, 2016 Price decrease: $0.99 -> FREE!
  • February 16, 2016 Price increase: FREE! -> $0.99
  • February 21, 2016 Price increase: $0.99 -> $1.99
  • February 28, 2016 Price decrease: $1.99 -> $0.99
  • March 13, 2016 Price decrease: $0.99 -> FREE!
  • March 15, 2016 Price increase: FREE! -> $0.99
  • July 11, 2016 New version 1.10
  • July 11, 2016 Price decrease: $0.99 -> FREE!
  • July 28, 2016 Price increase: FREE! -> $0.99
  • August 18, 2016 Price decrease: $0.99 -> FREE!
  • August 19, 2016 Price increase: FREE! -> $0.99
  • November 06, 2016 Price decrease: $0.99 -> FREE!
  • November 10, 2016 New version 1.11
  • June 14, 2019 New version 1.20
  • October 05, 2019 New version 1.23
  • July 15, 2020 New version 1.25

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