A closed geometric figure with multiple straight sides and angles. Common examples include triangles, squares, pentagons, and hexagons.
From Greek 'polys' meaning 'many' and 'gonia' meaning 'angle' or 'corner.' The term entered English through Latin in the 16th century as mathematical terminology became more standardized.
The sum of interior angles in any polygon can be calculated using the formula (n-2) × 180°, where n is the number of sides. Nature is full of polygonal shapes, from the hexagonal cells in honeycombs (the most efficient shape for storage) to the pentagonal symmetry found in many flowers and sea creatures.
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