What is the volume of the hexagon if middle is 3 ft base is 2.5 ft and top is 3 ft?
a. 34.7f ft cubed
b. 36 ft cubed
c. 38.58 ft cubed
d. 40.79 ft cubed
e. 42.22 ft cubed

This site shows you how to derive the formula for the area of a hexagon. A hexagon is a plane figure, so it has no volume.

Derive formula for area of a hexagon

If you're talking about a hexagonal prism, just multiply the area of the hexagon by the height of the prism.

The area of a hexagon is given by where t is the length of a side.

Hexagon - Wikipedia, the free encyclopedia

From your description, I'm not quite sure what geometrical figure you're talking about.