This is an illustration to show WHY the 30-60-90 angles DO NOT WORK in a Peaky and Spike unit.
http://www.quiltingboard.com/t-22974-1.htm
The approximate angles in the "Peaky and Spike" unit are:
the wide based triangle: 63.475, 53.050, 63.475 degrees
the skinny triangle: 26.525, 90, and 63.475 degrees
I have not been able to figure out a way to strip piece this unit.