Plane trigonometry is trigonometry carried out in (on) a plane. This could be contrasted with spherical trigonometry, which is trigonometry carried out on the surface of a sphere.
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( ′plān trig·ə′näm·ə·trē ) (mathematics) The study of triangles in the euclidean plane with the use of functions defined
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Plane Trigonometry is the study of the properties of triangles and trigonometric
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Trigonometry is a branch of math that deals with angles or triangles, their sides and calculations.
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