7' pyramid tipi from (?') square tarp?

[auscam]

While I know how to turn a square tarp into a 3-sided tipi, I don't know (and can't find out) what size of square tarp is needed to form a tipi that stands 7' tall at its apex.

Could some kind geometrically-minded soul help me out? Pointing me at the formula will do.

TIA,

Mark.

 

[Wandering Fred]

Good old Pythagoras Theorum works for me most of the time.
Just reduce everything to right angled triangles



So -
for a shelter 7' high with 10" x 10" footprint
a = pole height of 7'
b = half the width of the shelter. (10' divided by 2)
c = length of material needed for 1 side.
So -
a squared = 49
b squared = 25
c = Squareroot(49+25)=74 = 8.6' distance from apex of tent to ground

 

[bopdude]

If you search for Papa hiker on YouTube he makes one from a DD 4.5x3m tarp

 

[auscam]

Thank you both.