Trigonometry  Wikipedia
Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") is a branch of mathematics that studies relationships involving lengths and angles of triangles.The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
History of trigonometry  Wikipedia
Etymology. The term "trigonometry" was derived from Greek τρίγωνον trigōnon, "triangle" and μέτρον metron, "measure".. The modern word "sine" is derived from the Latin word sinus, which means "bay", "bosom" or "fold" is indirectly, via Indian, Persian and Arabic transmission, derived from the Greek term khordḗ "bowstring, chord".
Free Trigonometry Tutorials and Problems
Free Tutorials, problems and self tests on trigonometry. Examples and problems with solutions are included.
Trigonometry Calculator  Carbide Depot
Enter all known variables (sides a, b and c; angles A and B) into the text boxes. To enter a value, click inside one of the text boxes.
Sine, Cosine, Tangent  Math Is Fun
Sine, Cosine and Tangent. Three Functions, but same idea. Right Triangle. Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a RightAngled Triangle.
Maths Tutor
Pythagoras' Theorem and pizzas? The theorem is meticulously described here with an animation and extension material that brings the concept to real life (yes, using pizzas!).
Trigonometry Calculator
Trigonometry, which studies the measure of triangles, takes algebra to the next level. Its most wellknown features include the Pythagorean Theorem and the sine, cosine, and tangent ratios.
Right Triangle Trigonometry Calculator  Blocklayer.com
Click a side or angle entry to activate, and enter values for any 2 known sides (Green + Blue) or any 1 side and 1 angle to calculate the remaining sides and angles.
Inverse Sine, Cosine & Tangent. How SOHCAHTOA can ...
The inverse trigonometric functions (sin1, cos1, and tan1) allow you to find the measure of an angle in a right triangle.All that you need to know are any two sides as well as how to use SOHCAHTOA.
themathpage  Math Homework Help  Free Online Math Courses
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