Help finding Aspect Ratio of model plane/rocket

[Seabass421]

Hi, I'm trying to find the aspect ratio of my model rocket-plane that I have for a horizontal flight competition for my aerospace class. It's like a rocket, with fins at the bottom, but it has two little triangular wings in the middle to stabilize it.
Would I have to use a mixture of the two equations for aspect ratio (for fins and for wings)? Or how else would I go about finding it?
Thanks in advance!

 

[mugaliens]

Google is your friend! If you were to Google: "aspect ratio" and "delta wing"

You'd find an entry entitled "Delta Wings for All Speeds," wherein you would find the answers you seek.

You might also find it in your aero textbook. Try looking in the index under "delta wing" or "aspect ratio."