Question 227087
yes there is and it involves trig.

The angle between the post and the ground is 90 degrees.  We know that the distance between the two posts is 8 feet.  We also know that from the of one post to bottom of second post is at a 35 degree angle.  So we know the opposite side from the angle is 8 feet long and we are trying to find the hypotinues of the triangle.  So we need to use sine here, and the equation we need is:

sin 35 = 8/x

I will leave you to solve for x but you will get an answer of 13.947 ft.