Dihedral Angle
Pronunciation: /daɪˈhi drəl ˈæŋ gəl/ ?
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A dihedral angle is the angle formed by two intersecting planes.[1] The Intersecting Planes Postulate tells us that intersecting planes form a line. Take a line in each plane that is perpendicular to the line of intersection. The two lines must intersect. The dihedral angle of the planes is the angle between the two lines. Click on the blue points in manipulative 1 and drag them to change the manipulative. |
Cite this article as:
Dihedral Angle. 2010-01-23. All Math Words Encyclopedia. Life is a Story Problem.org. http://www.allmathwords.org/en/d/dihedralangle.html.
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- All images and manipulatives are by David McAdams unless otherwise stated. All images by David McAdams are Copyright © Life is a Story Problem.org and are licensed under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Revision History
2010-01-23: Added "References" (McAdams, David.)
2008-07-10: Changed manipulative from Sketchpad to GeoGebra. Added More Information (McAdams, David.)
2008-05-07: Initial version (McAdams, David.)
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