##
radian

Overview page. Subjects: Mathematics.

A unit of angle measurement. The radian measure of the angle enclosed between two lines *OP* and *OQ* is defined to be the length of the circular arc, with centre *O* and unit radius, enclosed...

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radian

Overview page. Subjects: Mathematics.

A unit of angle measurement. The radian measure of the angle enclosed between two lines *OP* and *OQ* is defined to be the length of the circular arc, with centre *O* and unit radius, enclosed...

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radian

in** A Dictionary of Astronomy**

January 2012; p ublished online January 2012 .

Reference Entry. Subjects: Astronomy and Astrophysics. 106 words.

A unit of angle used in geometry. It is defined as the angle subtended at the centre of a circle

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radian

in** A Dictionary of Astronomy**

P ublished online February 2018 .

Reference Entry. Subjects: Astronomy and Astrophysics. 107 words.

A unit of angle used in geometry. It is defined as the angle subtended at the centre of a circle

##
radian

in** A Dictionary of Chemical Engineering**

January 2014; p ublished online September 2014 .

Reference Entry. Subjects: Engineering and Technology. 27 words.

The plane angle between two radii of a circle that form an arc on the circumference that is equal in

##
radian

in** A Dictionary of Construction, Surveying and Civil Engineering**

January 2012; p ublished online January 2013 .

Reference Entry. Subjects: Engineering and Technology. 37 words.

A unit of angular measurement. One radian is the angle that is made by an arc on the circumference of

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radian

in** A Dictionary of Mechanical Engineering**

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Mechanical Engineering. 44 words.

A coherent derived SI unit defined as the plane angle subtended at the centre of a circle by an arc

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radian

in** A Dictionary of Physics**

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Physics. 4 words.

##
radian

in** A Dictionary of Physics**

January 2015; p ublished online September 2015 .

Reference Entry. Subjects: Physics. 4 words.

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radian

in** A Dictionary of Statistics**

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Probability and Statistics. 92 words.

A unit of angle measurement. The radian measure of the angle enclosed between two lines *OP* and *OQ* is defined

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radian

in** A Dictionary of Statistics**

January 2014; p ublished online September 2014 .

Reference Entry. Subjects: Probability and Statistics. 92 words.

A unit of angle measurement. The radian measure of the angle enclosed between two lines *OP* and *OQ* is defined