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None of them.
Altitude is the angle measured above the horizon.
the angle of incidence is the angle measured between the normal and the incident ray.. the angle of reflection is the angle measured between the reflected ray and the normal..
A reflex angle
With a protractor
Transit
Of the land surface, you may refer to slope, or gradient. In geology, the dip angle is the name given to the angle down which a strata follows.
None of them.
Altitude is the angle measured above the horizon.
The point about which an angle is measured
the angle of incidence is the angle measured between the normal and the incident ray.. the angle of reflection is the angle measured between the reflected ray and the normal..
A reflex angle
With a protractor
Altitude is the angle measured above the horizon.
An angle is positive when it is measured in a counter-clockwise direction. It is negative when it is measured in a clock-wise direction.
straight angle
Usually an angle is measured in degrees or radians.