ACT Math · Area and volume
A regular hexagon has side length 6. Which value is closest to its area? (Area of a regular hexagon = 3√(3)2s²)
A regular hexagon has side length 6. Which value is closest to its area? (Area of a regular hexagon = )
Answer and explanation
Answer: D: 94
Substitute into the formula: . Since , the area is , closest to , choice D. Choice B () is double that value. Choice A () is two thirds of the correct value. Choice C () is , which uses but leaves out the factor . A check: a regular hexagon is six equilateral triangles, each of area , and . Using the exact value avoids rounding errors until the last step.
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