flat half-circle protractor with a straight bottom edge and a hole in the middle Maze
A real, solvable maze shaped like a flat half-circle protractor with a straight bottom edge and a hole in the middle — generated by algorithm, verified to have a single solution, and free to print. Start at the red flag and find your way to the checkered flag.

Free for personal & classroom use. For commercial use — products, KDP books, or resale — get a Commercial License.
- Difficulty
- Hard
- Best for ages
- 8+
- Est. solve time
- 15–25 min
- Grid
- 150×91
- Solution path
- 1,894 cells
- Corridor cells
- 8,837
- Dead ends
- 923
- Solutions
- 1 (verified)
About the flat half-circle protractor with a straight bottom edge and a hole in the middle
A protractor is a flat measuring tool, usually a clear half-circle, marked with degrees around its curved edge. You line its straight edge and center hole up with an angle, then read off how wide the angle is in degrees. It is one of the handiest tools in a geometry set. Wind a path around this protractor maze, a fitting tool for a math or angles activity.
- A protractor measures the size of an angle in degrees.
- Its degree marks run around a curved, usually half-circle edge.
Solution

How to use this maze
- Start at the red flag and trace a path to the checkered flag — there is one correct route.
- Print on A4 or US Letter at 100% scale; the solution image above is the answer key.
- Free for classroom, homeschool, and personal printing.
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