Definition
弧度 is a measure word (classifier) for radian angle measure. You use it after a number to specify an angle in radians, similar to 度 for degrees. It's common in math, physics, and engineering contexts.
m.
radian (unit of angular measure)
Examples
- 弧度57.3。Yí gè hú dù dàyuē děngyú wǔshíqī diǎn sān dù.One radian is approximately equal to 57.3 degrees.
- 弧度。Zhège jiǎo de dàxiǎo shì sān hú dù.The size of this angle is three radians.
- π弧度。Bànyuán de jiǎodù shì π hú dù.The angle of a semicircle is π radians.
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