Find EXACT area of regular hexagon (keep in radical form)
Find area of octagon
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1.   2.

Step-by-step explanation:

1. The area of a hexagon is A =

Here our a is 4, so plugging in 4 to our equation gives which simplifies to

2. The area of an octagon is

Here our r is 9, so plugging in 9 to our equation gives which simplifies to

21/58.

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