how long would each side be in a pentakaidecagon ? (pentakaidecagon is a 15 sided poygon)?

Question

each side of the pentakaidecagon is 10 feet tall; creating a structure with an inside measurement of 900 sqft. How long would each side be? I am using 8"x8"x16" concrete blocks
to build this structure.

Answer 1

A = n(s/2)^2/tan(180/n)
s = 2√(A/n)tan(180/n)
s = 2√(900/15)tan(180/15)
s = 60√(1/15)tan(180/15)
s = 7.1424 ft = 7 ft 1.7085 in = 5.3568 blocks, or about 5 3/8 blocks

Answer 2

First of all you spelled it wrong it's Pentadecagon.Second look it up on the computerat

http://mathworld.wolframe.com/Pentadecagon.html.

Hope it helps.