I was working with a full sphere and then divided my answer in half at the end, anyway I found out where I was going wrong! I can't believe it, I thuoght tha 55/2 22.5 :O Terribly stupid mistake!
Homework Statement
A geodesic dome constructed with an aluminum framework is a nearly perfect hemisphere; its diameter measures 55.0 on a winter day at a temperature of -18 C.
How much more interior space does the dome have in the summer, when the temperature is 30?
Homework...