弧度 (hú dù) — radian (unit of angular measure)

Definição

A unit of angle measurement equal to about 57.3°, where 2π 弧度 make a full circle. Used in math and science, not in everyday descriptions of angles.

classifier

radian (unit of angular measure)

弧度57.3。
Yí gè hú dù dà yuē děng yú 57. 3 dù.
One radian is approximately equal to 57.3 degrees.
弧度。
Zhè ge jiǎo de dà xiǎo shì sān hú dù.
The size of this angle is three radians.
π弧度。
Bàn yuán de jiǎo dù shì π hú dù.
The angle of a semicircle is π radians.

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