Pronunciation: /ˈdɛkəˌɡɑn/
noun a polygon with ten sides and ten angles
A1 A decagon has ten sides.
A2 The children learned about shapes, including a decagon.
B1 The architect designed a building with a decagon-shaped floor plan.
B2 The artist created a beautiful mosaic featuring a decagon in the center.
C1 The mathematician calculated the angles of a regular decagon with precision.
C2 The intricate stained glass window featured a decagon surrounded by geometric patterns.
formal A decagon is a polygon with ten sides and ten angles.
informal Have you ever tried drawing a decagon? It's pretty challenging.
slang That decagon shape looks like a funky stop sign.
figurative The team's defense formed a decagon around the goal, making it nearly impossible for the opponent to score.
decagons
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