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.
Trigonometry - Math Is Fun
Trigonometry helps us find angles and distances, and is used a lot in science, engineering, video games, and more! Right-Angled Triangle. The triangle of most interest is the right-angled triangle.
Trigonometry | Khan Academy
Learn trigonometry for free—right triangles, the unit circle, graphs, identities, and more. Full curriculum of exercises and videos.
trigonometry | Definition, Formulas, Ratios, & Identities ...
Trigonometry: Trigonometry, the branch of mathematics concerned with specific functions of angles.
Trigonometry: Theorems, formula, rules and Worksheets
Trignometry resources--video tutorials, interactive lessons and free calculators
Trigonometry with right triangles | Math | Khan Academy
Learn the basics of trigonometry: What are sine, cosine, and tangent? How can we use them to solve for unknown sides and angles in right triangles?
Basic trigonometry | Basic trigonometry | Trigonometry ...
Introduction to trigonometry Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/trigonometry/basic-trigonometry/bas...
Trigonometry Homework Help | Free Online Trigonometry ...
Get Trigonometry homework help online. Gain complete understanding of Trigonometry with our free trigonometry course covering formulas, degrees, equations and more.
What Is Trigonometry? - Live Science
Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.
Trigonometry -- from Wolfram MathWorld
The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the circular functions) comprising trigonometry are the cosecant cscx, cosine cosx, cotangent cotx, secant secx, sine sinx, and tangent tanx.