Posted by **Ashley** on Monday, November 12, 2012 at 10:01am.

How can I find the surface area and volume of a hexagonal prism if I don't know the height, only apothem and one side of the base?

Thank you!

- surface area & volume -
**Steve**, Monday, November 12, 2012 at 10:19am
as you recall, the area of a regular polygon is 1/2 the product of the apothem and the perimeter.

That help?

How about this: one side of a hexagon is 1/6 the perimeter.

- surface area & volume -
**Ashley**, Monday, November 12, 2012 at 10:29am
Apothem=6sqrt3

side=12

SA=2B+ph

SA=748.25+72h

is that correct?

i just don't understand how to figure out the height..

- surface area & volume -
**Steve**, Monday, November 12, 2012 at 11:57am
well, you do have a problem. Unless they give you the height of the prism, you're stuck.

It's like asking for the area of a rectangle if they only give you the length.

The prism is a 3D figure, and they have only given you the information on the base.

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