In order to find the length of T, take into account the law of sines, given by:
u/(sin
Morever, consider that the sum of the interior angles of a triangle is equal to 180°:
next, use the equation u/(sinsolve for t and replace the values of the rest of parameters, as follow:
t = [u/(sin
t = [40 in/(sin36°)](sin71°)
t = 64.34 in ≈ 64 in
Hence, the value of t is 64 in