Question 5 • MASTER COURSE Geometry
In a regular hexagon, the radius (center to a vertex) is equal to the side length, so each side is 20 inches. The hexagon is made of 6 equilateral triangles, each with area (√3/4)(20²) = 100√3 square inches. Thus its area is 600√3 ≈ 1,039 square inches, which matches choice A, 1,039 in.².
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