The game is called "Angle Architect"
I am glad to be the main developer of this game.
Description
You start the game by having a random line in the center of the screen. Using your finger, you have to draw another line to form a certain angle.
Technical info
The game was made using Unity 5 game engine. I coded it using C# and it took me like one week. It has around 500 lines of code.
Screens
Google Play
https://play.google.com/store/apps/details?id=com.SAStudio.AngleArchitect
Thank you ! :)