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Trigonometry (from the Greek trigonon = three angles and metro = measure) is a branch of mathematics dealing with angles, triangles and trigonometric functions such as sine, cosine and tangent. It has some relationship to geometry, though there is disagreement on exactly what that relationship is; for some, trigonometry is just a subtopic of geometry.
This category has the following 3 subcategories, out of 3 total.
The following 82 pages are in this category, out of 82 total. This list may not reflect recent changes (learn more).
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