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Q: What is the definition of plane trigonometry?

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spherical and plane trigonometry? :p

Trig helps to measure distances between objects without anyone actually having to travel to all the points. It should be noted that trig is used "in cartography" (in the practice of map-making), or used "by a cartographer" (by a map maker).-

Trigonometry

Yes, two perpendicular coplanar lines will touch. If you have two lines that, by definition, form a 90 degree angle (i.e., they are perpendicular) and are both on the same plane, eventually they must cross at some point on that plane. They will have exactly one point in common. If, however, the lines were, by definition, "perpendicular skew" lines, they would never cross because the definition forbids it.

The way you do trigonometry is by working with triangles. Trigonometry is a math class that is taught in high school and usually followers algebra and geometry.

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The study of the ratios of the sides and angles of triangles in the same plane.

plane trigonometry spherical trigonometry

Trigonometry is the study of plane and spherical triangles. Plane trigonometry deals with 2 Dimensional triangles like the ones you would draw on a piece of paper. But, spherical trigonometry deals with circles and 3 Dimensional triangles. Plane trigonometry uses different numbers and equations than spherical trigonometry. There's plane trigonometry, where you work with triangles on a flat surface, then there's spherical trigonometry, where you work with triangles on a sphere.

The main kinds are plane trigonometry and solid trigonometry. The latter will include trigonometry in hyper-spaces.

The two branches of trigonometry are plane trigonometry, which deals with figures lying wholly in a single plane, and spherical trigonometry, which deals with triangles that are sections of the surface of a sphere.

Benjamin Donn has written: 'The geometrician' -- subject(s): Geometry, Plane, Logarithms, Plane Geometry, Plane trigonometry, Trigonometry, Plane

Ramus has written: 'Trigonometrie' -- subject(s): Spherical trigonometry, Plane trigonometry, Trigonometry

Nathan O. Niles has written: 'Plane trigonometry' -- subject(s): Plane trigonometry 'Trigonometria Plana'

Karl Bachman Patterson has written: 'Plane trigonometry' -- subject(s): Plane trigonometry, Problems, exercises, Trigonometry 'Analytic geometry' -- subject(s): Analytic Geometry

Walter Fleming has written: 'Plane trigonometry' -- subject(s): Plane trigonometry 'Precalculus mathematics' -- subject(s): Mathematics, Precalculus

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