Answer:
Explanation:
if Z is the length of the zip line , and the ladder is going up the tree from 75° angle point, then it's 25*cos(75°) =6.47047 feet (c) from the base of the tree, and also mean that h = 25 sin(75°) =24.1481 feet (b)
now use SOH CAH TOA, to remember how the trig function fit onto the triangle so use what we know, to find the zip line length
the small angle where the zipline meets the ground , by observation is 10°
use SOH, sin(10) = Opp / Hyp
sin(10) = 24.1481 / hyp
hyp = 24.1481 / sin(10)
hyp = 139.0636 feet (a) our zip line length :P
Cos(10) = adj / hyp
Cos(10) = adj / 139.0636
139.0636 * Cos(10) = adj
136.95 feet, is the base of the zip line :P
did you understand how I did those? :/