Radian measure - Hutchinson encyclopedia article about Radian measure Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,580,476,409 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

radian
(redirected from Radian measure)

    Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

radian

SI unit of plane angles, an alternative unit to the degree. It is the angle at the centre of a circle when the centre is joined to the two ends of an arc (part of the circumference) equal in length to the radius of the circle. There are 2π (approximately 6.284) radians in a full circle (360°).

One radian is approximately 57°, and 1° is π/180 or approximately 0.0175 radians. Radians are commonly used to specify angles in polar coordinates.
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link 		Feedback
?Sign in SSL protected
Email:
Password:
Register

Mentioned in?  References in periodicals archive?   Hutchinson browser?   Full browser?
 
01 unit grid enables coordinates to be read off easily; * as a learning aid in the memorization of the coordinates of points representing multiples of 30 [degrees] and 45 [degrees] on the unit circle; * as a learning aid in the memorization of particular sine and cosine ratios; * to teach radian measure of angles.
Using tool-making to contextualise geometry: the super-size protractor by Sheppard, Ian / Australian Mathematics Teacher
95 Hardcover QA531 McKeague and Turner (both, Cuesta College) cover the usual introductory trigonometry topics: the six functions, right triangle trigonometry, radian measure, graphing and inverse functions, identities and formulas, equations, triangles, and complex numbers and polar coordinates.
Trigonometry, 6th ed by SciTech Book News
I suggested that they consider the following: * Note that the circumference C of a circle of diameter D is an arc length, which means that the radian measure [pi] = C/D; since D = 2r (r = the radius of a circle), then [pi] = C/2r [?
Where does the formula come from? Students investigating total ... by Obara, Samuel / Australian Mathematics Teacher
 
 
 
Hutchinson Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.