True: A nonagon has 9 sides, An equilateral triangle has 3 lines of symmetry, No. of sides of regular polygons = No. of lines of symmetry, Regular polygons have equal sides, Regular polygons: No. of lines of symmetry = Order of rotational symmetry, Regular polygons have equal angles, False: A square is NOT a regular polygon, Regular polygons have equal sides but NOT equal angles, A rhombus has no equal sides, A pentagon has 7 sides, A parallelogram is NOT a quadrilateral, A nonagon has 11 sides,

Regular polygons plenary

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