Find Angles!
Once you have completed the basic questions from Stage 1 to Stage 4,
try to solve the challenging questions on the Final Stage!

If you can't solve a question, you can check the hint of the question or ask the answer to your friends via Twitter.

'Angles' contains following contents:
-The sum of the Angles of a triangle
-Exterior angle of a triangle
-Isosceles triangle
-Right-angled triangle

-Vertical angle
-Corresponding angle
-Alternate angle


-The sum of the Angles of a quadrilateral
-The sum of the Angles of a polygon

-Inscribed angles

-Alternate segment theorem

Find the colored area.
8x8 grid, the area of each cell is 1.
π(Pi) is the ratio of the circumference = 3.1415… .
Stage 1,2,3,4,5,6 have easy questions.
Stage 7,8,9 have hard questions.
Stage 10 have very hard questions.

Find the number that fits in "?"
1st Stage have easy questions.
Final Stage have hard questions.

What’s New

Version 2.54.0

We fixed some bugs.

Ratings and Reviews

4.5 out of 5
71 Ratings

71 Ratings

Bubba$1234 ,

Love this game❤️!

I love this game and how challenging some of the levels are. It helped me study for my angles test. It is also fun with all the colors and you can write on the screen with your finger to solve it! So that makes it much much easier to do the work for the problem. Keep up the great work!

Enoch Kandiah ,


Nice app

UPSY42q ,

Developer steals your money and won’t respond

BEWARE! The “development” behind this app is practically nonexistent and the people are unethical crooks . The game itself isn’t much. There are three categories: Angles, Areas and Sequences. Every “puzzle” is just a static image of a shape on a grid or a list of numbers and you have to type what you think the angle, area, or next number in the sequence is. This could easily have been a website rather than an app. A very simple website. A mediocre website.
The worst part is that the in-app purchases don’t actually do anything. More on that in a minute.
First you need to know that this app is just an “advertisement delivery system”. Advertising money is this app’s only raison d’être. The ads are everywhere; at the bottom of the page, every time you start the app. If you swipe away from the app or your screen goes off, the entire app restarts itself to give you a new ad. The volume gets turned up, too. You can’t put your device down for a second without another ad popping up (on top of the ever present banner ads). Go back to a previous screen? Ads! It’s the laziest excuse in the name of “education” and “puzzle game” ever thought up just to pump you for ad money. Just slapped the image on there. “Here. Solve this.”
There is an in-app purchase to remove the advertising. $2.99. Pay it and nothing happens. The app remains the same. The ads stay in place. If anything it gets buggier because now certain parts of the app deep in the settings crash when you try to look at your payments or email the developer. Their website is completely in Japanese. I Emailed them anyway. It’s been months and there is still no response.


Gakko Net Inc.
41.4 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating
Rated 12+ for the following:
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Medical/Treatment Information
Infrequent/Mild Simulated Gambling
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
Infrequent/Mild Realistic Violence
Infrequent/Mild Profanity or Crude Humor
Infrequent/Mild Sexual Content and Nudity
Infrequent/Mild Cartoon or Fantasy Violence
Infrequent/Mild Horror/Fear Themes
© GakkoNet Corp, Inc.
In-App Purchases
  1. Disable Ads $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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