作者: Michael R. Hastings , John E. Remillard
DOI:
关键词: Geology 、 Edge (geometry) 、 Geometry 、 Orientation (geometry) 、 Right triangle 、 Perpendicular 、 Right angle 、 Hinge 、 Tape measure 、 Straight edge
摘要: A combination tape measure and straight edge apparatus includes a first segment which an outer inner has predetermined thickness. assembly bottom side, hinge is connected between the side of segment. The adapted to permit be rotated with respect from storage orientation either in-use or second orientation. end end. guide member at right angle. may oriented perpendicular third segment, form unified, integrated triangle.