Question 896826
Plug in and solve to the best of your ability 
{{{t = 2pi*sqrt(L/32)}}}
t = 2.2
{{{2.2 = 2pi*sqrt(L/32)}}}
{{{4.84 = 4pi^2*(L/32)}}}
{{{1.21 = pi^2*L/32}}}
{{{L = 1.21*32/pi^2 = 38.72/pi^2}}}
L =~ 3.923156
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Don't waste time making squiggles.
It's the Greek letter pi, not the dessert, pie.