# XSection

4.5
4.74K reviews
100K+
Everyone

Master different methods and solve puzzles.

* More than 100 tasks: from basics to challenges
* 11 chapters to explore
* Built-in glossary with geometric terms
* Step-by-step instructions
* Easy to use

XSection is a trainer of solid geometry problem solving. It teaches you how to perceive 2D representation of polyhedra, lines, and planes from 3D Euclidean space. All the problems can be solved without complex calculations. The app contains the required theory facts and explanations. If you forgot a definition, you can instantly find it in the app’s glossary.

XSection is a perfect way for students to practice before tests or exams and to improve your spatial imagination. The app will not allow you to create an impossible object: for example, to "intersect" skew lines (which is a typical error when constructing cross sections on paper).

The best way to learn to solve math problems is to solve them a lot.

Main topics:
- Prisms, cubes, parallelepipeds, and cuboids
- Pyramids and tetrahedrons
- Diagonals of polyhedrons
- Cross sections
- Diagonal sections
- Parallel and central projections
- Method of traces
- Method of inner projection

XSection follows Euclidea - Pythagorea - Pythagorea 60° series of our geometric games. With these apps you can become a real Geometry Guru!

Starting from the 8th chapter levels are unlocked at 4-hours interval. But you can buy an IAP that removes this restriction.

Send in your inquiries and stay up-to-date on the latest XSection news at https://www.euclidea.xyz/
Updated on
Jun 26, 2019

## Data safety

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## Ratings and reviews

4.5
4.74K reviews
Ken Manheimer
December 24, 2021
Five stars not because it's perfect but because I learned about solid geometry and solving solid geometry challenges through these exercises, and enjoyed it along the way. A bit like another reviewer, I got a little ways in and then, starting to get a feel for it, I went back to the start and the concepts (particularly using traces to extrapolate intersections of planes with solids, but not only that) really clicked. Genuinely fun and substantial learning.
18 people found this review helpful
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Rebecca Brannon
September 19, 2019
If you're trying to do what the app instructs, but you don't understand what a word (like skew) means, then it seems at first that there is no way to proceed. At least in the tutorial part, the app needs to call attention to where the glossery is located. Better yet, if it detects some extended failed attempts, then it should automatically offer a hint.
7 people found this review helpful
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Michael Boehme
October 2, 2019
Great follow up to euclidia, with a few drawbacks. The screen can get really messy at times making it difficult to control accurately, made worse by the fact that each level can only be viewed from the given angle. Without being able to rotate the shape at all things get crowded and confusing especially on harder levels. Additionally some of the level requirements are vague or ambiguous making it potentially impossible to pass a given level.
5 people found this review helpful
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v1.04