Ключевые слова: angle, art, background, badge, black, book, business, centimeter, circle, compass, concept, design, divider, drawing, education, element, engineer, equipment, flat, geometric, geometry, graph, graphic, icon, illustration, instrument, isolated, line, math, mathematics, maths, measure, measurement, object, office, paper, pencil, protector, protractor, ruler, scale, school, shape, sign, space, square, study, symbol, tool,