Ключевые слова: abstract, accuracy, angle, architecture, background, business, centimeter, circle, concept, construction, design, drawing, education, engineering, equipment, flat lay, geometric, geometry, green, group, idea, instrument, line, math, mathematical, measure, measurement, millimeter, nobody, number, objects, office, plastic, protractor, ruler, scale, school, science, set, shape, sketching, student, supplies, symbol, technology, tool, transparent, triangle, white, work,