- - Subject with no depth?
- - Subject of a Euclidean treatise
- - First subject in Euclid's "Elements"
- - Subject in Euclid's "Elements"
- - School subject.
- - High school math course
- - Math subject
- - Study that lacks depth?
- - Two-dimension math
- - Mathematics branch
- - Handyman's favorite math course?
- - Euclid's "elements"?
- - Math class
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