How to draw geometric structures in sketchup

This is a the first in a series of tutorials about geo-dome geometry, one the next few weeks I will add videos explaining how to accurately draw geometric structures. This video is an introduction and demonstration showing how to make a icosahedron, this is the parent to a vast array of complex and beautiful geometric forms, if you can draw this, you can draw pretty much any other icosahedral based form, including 3v - 4v - bucky ball and many more.