Ключевые слова: book, centimeter, contour, cover, design, education, equipment, geography, geometric, global, globe, glowing, graduate, graduation, graphic, hat, icon, illustration, instrument, internet, isolated, length, light, line, linear, map, math, measure, measurement, neon, object, outline, planet, scale, school, science, set, size, sphere, straightedge, symbol, textbook, tool, travel, world,