The area of a regular hexagon can be calculated using the formula: Area = (3√3 / 2) × a², where a is the length of one side. Substitute the given value of a = 10 cm: Area = (3√3 / 2) × 10² = (3√3 / 2) × 100 ≈ 259.81 cm². Answer: c) 259.8 cm²
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