The Grand Canyon Skywalk at Eagle Point is a horseshoe shaped steel frame with a glass floor looking down to the Grand Canyon below. The Skywalk extends 70 feet over the canyon rim and is 10 feet wide. The walkway consists of a semicircle with a
straight portion on each side as indicated in the diagram below.
Path Width
10 feet
Outer Circle
65 feet diameter
Imer Carcle:
45 feet diameter
65 feet
70 feet

A light tower is going to be installed on the left edge of the Skywalk as indicated in the diagram above. The light will shine down to the opposite edge of the Skywalk indicated with the star in the diagram above. How tall does the light tower need to be if the angle of depression is 51°? (Round to 1 decimal place and be sure to include units.)