Fibonacii spiral staircase...
M mdengraver ~ Elite 1000 Member ~ Joined Apr 10, 2007 Messages 3,609 Location Rockville, MD Aug 1, 2021 #1 Fibonacii spiral staircase aSpiral - Google Search Attachments 223291814_4414737721880398_7396323810646402304_n.jpg 71.2 KB · Views: 39
223291814_4414737721880398_7396323810646402304_n.jpg
