geometry textbook
Shapes and proofs
A geometry textbook is a book used for instruction in geometry—the branch of mathematics dealing with points, lines, angles, shapes, and spatial relationships.
The term evokes high school math class, where students learn to prove theorems about triangles and circles: I left my geometry textbook in my locker.
- theoremDemonstrated logical conclusion
- Pythagorean theoremRelates right triangle sides
- proofsDemonstrations of truth
- anglesRotation between intersecting lines
- right angleExactly ninety degrees
triangles · acute triangle · compass · protractor · straight edge · Euclid · diagrams · axioms · polygons · circles · equations · homework · math class · study guide · pencil · ruler · postulates · congruent
academic discipline
geometry textbookpoetry anthology
Compiled selection of poems
novel · religious scripture · diary · memoir
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