Can someone me with this math question?

what is the area of a regular hexagon with a side length of 4 m?
(round only your final answer to the nearest hundredth.)

Regular Hexagon Area = (6 * side length * apothem) / 2
We will have to calculate the apothem length:
apothem = side length / (2 * tan (180 / # of sides))
apothem = 4 / (2 * 0.57735)
apothem = 3.4641032303
Regular Hexagon Area = (6 * 4 * 3.4641032303) / 2
Area = 41.5692387633 square meters

Source:
http://www.1728.org/polygon.htm