mathematics - What's the word for the small square indicating a right angle in a geometric figure? - English Language & Usage Stack Exchange

I'm talking about something in geometry notation and/or drafting, I think. It's the mini right-angle shape you can draw within an angle to indicate that it's ninety degrees. E.g., the mark denoting

sandipanweb Simply Data Science

Geometry and Spatial Sense, Grades 4 to 6 - EduGains

Why are angles in a square right angles? - Quora

Neural dynamics of phoneme sequences reveal position-invariant code for content and order

Does a square have to have right angles? - Quora

Abstract Algebra for Secondary Mathematics Teachers

Opinion Paper: “So what if ChatGPT wrote it?” Multidisciplinary perspectives on opportunities, challenges and implications of generative conversational AI for research, practice and policy - ScienceDirect

A 64-core mixed-signal in-memory compute chip based on phase-change memory for deep neural network inference

Help:Displaying a formula - Wikipedia

Lecture 0: Preliminaries

Free Math Olympiad Secondary Solutions by Jon

The Semiotic Structure of Geometry Diagrams: How Textbook Diagrams Convey Meaning - National Council of Teachers of Mathematics

Right Angle - Definition, Shape, Examples and Properties

Mathematics for Machine Learning

Geometric series - Wikipedia