ra|di|an

ra|di|an
ra|di|an «RAY dee uhn», noun.
the angle at the center of a circle, that subtends an arc of the circle equal in length to the radius; an angle of 57.2958 + degrees. Abbr: rad.
[< radi(us) + -an]

Useful english dictionary. 2012.

Игры ⚽ Поможем написать реферат

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