3*sqrt(3)/2*r^2
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Area of hexagon= Area of original triangle/10
The surface area of a hexagon is the same as its area. You will normally need to split the hexagon into triangles, find their area and sum these.
Given the length of a single side: L × (3√3)/2
About 10.39 square feet.The formula is A = 3/2 (sqrt 3) s2(this is about 2.598 times the side length squared)
The area of a regular hexagon with side length of 20cm is about 1039.23cm2