Answer:
62.73 degrees.
Explanation:
The diagram representing the given problem is attached below:
In the right triangle ABC above:
• The length of the ladder, AC = 18 ft
,
• The height of the wall, AB = 16 ft
,
• The angle between the ladder and the ground = x
From trigonometric ratios:
Next, take the arcsin of both sides:
The angle between the ladder and the ground is approximately 62.73 degrees.