Question 1075040
1) lets call the length of the guy wire h (for hypotenuse)
2) 219-6 = 213 the guy wire is attached 213 feet high
3) the guy wire makes an angle of 21 degrees with the ground
:
We need to apply SOH (Sine - Opposite - Hypotenuse)
Sin 21 = 213/h
h*(sin 21) = 213
h = 213/sin 21 
h = 213/0.8366
h = 254.60