Ключевые слова: abstract, angle, background, black, centimeter, close, cm, comer, concept, construction, corner, design, division, editable, education, equipment, geometric, geometry, graph, graphic, grid, icon, illustration, inches, instrument, isolated, line, math, mathematics, measure, measured grid, measurement, millimeter, numbers, paper, point, printable, regular, ruler, scale, school, sign, size, square, symbol, texture, tool, web, white,