Hey I need to know an angle for a geodesic structure.

The material is wood. Wondering the angle of the cuts.

A set of five triangles are made starting at 2.00 minutes in this video:

http://www.domerama.com/geodesic-dome-plans/What are the exact dimensions of the individual "stick" and what are the angles?

At 4.30 he shows his template and his practical method of construction.

He does not mention the angle of the rip of the angle of the end cut, which I presume is 60 degrees.

What is the rip angle? I presume it is dependent upon the length of the legs, what is the formula?

I presume the "rip angle" should be overcut to maximize compression along the outside edge.