EntityQ3275823· pop 15· linked from 478 articlessteel squareSign in to saveflat tool used in carpentry to mark right angles and calculate anglesConnectionsangleEntitytimber framingEntityscale rulerEntityaluminiumEntityInternational Standard Book NumberEntitysteelEntityPythagorean theoremEntitycalculatorEntitystairsEntityweighing scaleEntitypolymerEntityright triangleEntityrulerEntitycompassEntityhypotenuseEntityoctagonEntityLibrary of Congress Control NumberEntityright angleEntitydiagonalEntityslopeEntityCategoriesDimensional instrumentsSquares (tool)Woodworking hand toolsWoodworking measuring instruments