7.25. Horizontal Sight Distance - Around the shed. Just north of town, traffic on 2-lane North 9th enters a righthand curve. Filleen feet to the right of the pavement edge stands a large storage shed. A concerned neighbor is able to pace off the length of the tangent as 196 feet and estimate A as 45 degrees. The lanes are 12 feet wide. A. Using the neighbor's estimates, what is the radius of the horizontal curve