The Grand Canyon Skywalk at Eagle Point is a horseshoe shaped steel frame with
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
In order to prevent anyone
from falling over the sides, a new railing needs to be installed. How
many linear feet of railing are needed to line both sides of the walkway?
(Round your final answer to 1 decimal place and any intermediate
calculations to 2 decimal places. Be sure to include units.)