directed angle [dĭ-rĕkˈtĭd, dī-]
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The definition of a directed angle is one that shows a designated direction.
An example of a directed angle is one with a counterclockwise arrow going from the base line to the elevated line in the angle showing the direction.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An angle having an indicated positive sense.