Answer:
600root(3)
Step-by-step explanation:
You can split the hexagon into 6 equal triangles.
Find the areas of the triangles first:
We know that the triangles are 30 ,60 ,90 (360/6=60).
From that we can get 10root(3)*10 = 100root(3)
Area of triangle = 100root(3)
Area of hexagon = 600root(3)