angle of depression
the angle formed by a horizontal line and the line of sight to an object below the horizontal line
The angle of depression is the angle formed between a horizontal line and the line of sight when an observer is looking downward. It is commonly used in trigonometry and geometry to calculate the height or distance of an object. To find the angle of depression, the observer’s location and the angle of sight must be known.
For example, consider an observer standing on top of a building looking down at a point on the ground. The angle formed between the horizontal line and the line of sight from the observer to the point on the ground is the angle of depression. This angle can be measured using a protractor or calculated using trigonometric functions.
The angle of depression can be useful in many real-world applications, such as surveying, architecture, and engineering. It can help determine the height of a building, the distance from an object, or the slope of a hill.
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