| The American Heritage® Dictionary of the English Language: Fourth Edition.
2000. |
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alternate angle. |
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| Angles 3,6 and 4,5 are alternate interior angles; angles 1,8 and 2,7 are alternate exterior angles. | | (Source: Academy Artworks) |
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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