Two guy wires from the top of a 220-foot radio antenna are anchored to the ground by two large concrete posts.The antenna is perpendicular to the ground and between the two posts. If θ=39 degrees and ϕ=46 degrees then the distance between the two posts is ____ feet.   

Two guy wires from the top of a 220foot radio antenna are anchored to the ground by two large concrete postsThe antenna is perpendicular to the ground and betwe class=