Answer:
665.1
Explanation:
The formula for an area of a hexagon is

the S (side) is 16 so,

=
=
× 128
=

round to the nearest sq. rt. means that you have to round to the nearest tenth, or 0.1
is 665.10751 as a decimal
665.1 as rounded. Therefore, the area of the hexagon is 665.1 sq ft