Geometric square

a portable instrument in the form of a square frame for ascertaining distances and heights by measuring angles.

See also: Geometric

References in periodicals archive ?
Procedure: Have students research and list as many ways as possible in which the square is used in math: square roots, square angles, geometric square, etc.
Their split edges form a perfectly geometric square that seems to rise above the reality of wood and bark.
The Frankie rug features repeating geometric squares that take twists and turns across the floor, creating an optical feast for the eyes.
QI saw a design you recently completed in a show home with geometric squares in silver and cream.
To achieve this without making the room look too fussy, Anna painted a contrasting lilac panel on one of the white walls and decorated this with stencilled geometric squares and rectangles.
Wide stripes and geometric squares replace the large, floral patterns seen in the other collections.