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matematyka
convex, bracket, wavy line, cylinder, vertical, square, sphere, hypotenuse, interval, sharply, bisector, heptagon, hexagon, trapezium, level off, perpendicular, diameter, fluctuate, supplementary angles, parallelogram, slightly, right-angled triangle, diagonal, chord, solid line, complementary angles, broken line, radius, acute angle, decrease/drop/fall, equilateral triangle, dotted line