Posted by Taylor on .
5. Find the area of the regular hexagon.

Adv. Geometry 
Reiny,
In general, if each side is x
then area = 6(1/2)(x)(√3x/2)
=(3/2)√3 x^2
find area of one of the 6 equilateral triangles
the base will be x , and using Pythagoras or basic trig it can be show that the height is √3x/2