The file 'Missing Square Puzzle Illusion 3D Printer Model' is (stl) file type, size is 43.4KB.
Great puzzle illusion that will baffle most people.
From Wikipedia
The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations.
https://en.wikipedia.org/wiki/Missing_square_puzzle
triangles-puzzle-A.stl | 40.7KB | |
triangles-puzzle-B.stl | 47.9KB | |
triangles-puzzle-base.stl | 36.7KB | |
triangles-puzzle-C.stl | 47.7KB | |
triangles-puzzle-D.stl | 30.0KB |