set square

Definitions

1. A flat triangular piece of plastic or other material, having corners of precise angles, used in technical drawing
   UK
2. A right angle tool used to determine if two surfaces join at a 90-degree angle, composed of two arms, usually made from metal.

Equivalents

Examples

“Descartes extended this classification by introducing his set-square compass. This is mechanism of sliding set⟳ squares that "push⟳" each other... .”

CEFR level