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Pentagon
Author:
Gordon Gavin Zach
The black shape on the soccer ball is a pentagon because it has 5 congruent sides as well as 5 congruent interior angles.
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與一條線段保持固定距離的點的軌跡
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The black shape on the soccer ball is a pentagon because it has 5 congruent sides as well as 5 congruent interior angles.