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The angle of elevation is looking at an object above your line of sight.
It is the alternate angle to the angle of elevation
If the base of the elevation is at a distance d from the observer, then the highest point is at a height = d*tan(angle of elevation)
The front elevation is in the centre in both projections. In 1st angle projection the end elevation is on the opposite side of the front elevation and the plan view is below the front elevation. In 3rd angle projection the plan view is above the front elevation and the end elevations are on the same side as viewed
The angle of elevation is increased as the plane flies closer because of the decreasing distance.
Angle of elevation is looking upwards to an object and angle of depression is looking downwards to an object
The angle of elevation is looking at an object above your line of sight.
distance and angle of elevation are closely related as the more closer you move, the half is the angle of elevation. for e.g. if you travel 30m and cover 15m then, the angle of elevation will be half of what you started with. this can be also proved by a live example as when you have the angle of elevation as 90 degree, then the distance can be zero....
It is the alternate angle to the angle of elevation
mathematical phrase
Corresponding Angle
If the base of the elevation is at a distance d from the observer, then the highest point is at a height = d*tan(angle of elevation)
Angle of elevation: tangent angle = opposite/adjacent and by rearranging the given formula will help to solve the problem
A sextant.
Angle of depression is defined as the angle between the horizontal line and the line joining the observer's line of sight to an object below the observer's eye sight. You can be on top of a building and an object is situated on the ground, and the angle between your horizontal line and the object is the angle of depression.
A corresponding angle.
the change in elevation changes on record.