The designers of a water park are creating a new slide and have sketched some preliminary drawings.The length of the ladder is a = 26 feet, and its angle of elevation is 60º (see figure) .
Find the angle of depression 
from the top of the slide to the end of the slide at the ground in terms of the horizontal distance d the rider travels.
Definitions:
Purpose
The reason for which something is done or created, or for which something exists.
Psychological Environment
The perceived or experienced surroundings that influence an individual's mental and emotional state.
Force
The influence or energy exerted on or against an object in order to cause it to change its motion or state.
Learning
The process of acquiring new understanding, knowledge, behaviors, skills, values, or preferences through study, experience, or teaching.
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