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What shape has five sides?

  1. Quadrilateral

  2. Hexagon

  3. Pentagon

  4. Triangle

The correct answer is: Pentagon

The correct answer is pentagon, which is defined as a polygon with five sides and five angles. In geometry, the term "penta-" refers to the number five, so a pentagon is specifically characterized by its five straight edges. For context, a quadrilateral has four sides, a hexagon has six sides, and a triangle has three sides. Each of these shapes has distinct properties based on their number of sides and angles, further distinguishing the pentagon as the unique shape that fits the criteria of having exactly five sides.