plane trigonometry
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plane trigonometry
(′plān trig·ə′näm·ə·trē)
(mathematics) The study of triangles in the euclidean plane with the use of functions defined by the ratios of sides of right triangles.
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McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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