Question

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Answer 1

Try drawing it out:
We can assume that the hypotenuse is 18√(3), this is equivalent to the radius of the hexagon. Because two 30-60-90 triangles form an equilateral triangle, the side the hexagon is also 18 √(3). Thus the perimeter is 6 * 18√(3) = 108√(3).

Answer 2

do you understand @Duffy0121 ?

Answer 3

Can I have a medal? :)

Answer 4

Thanks