The branch of mathematics dealing with shapes, sizes, and properties of space.
彼は大学で幾何学を専攻している。
He is majoring in geometry at university.
この問題は幾何学の知識が必要だ。
This problem requires knowledge of geometry.
I'm studying geometry at university.
He solved a difficult geometry problem.
She is majoring in geometry at university.
hyperbolic geometry
descriptive geometry