radian; unit of plane angle
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
radian; unit of plane angle
formalA mathematical unit. One radian is the angle subtended at the center of a circle by an arc equal in length to the radius. Approximately equal to 57.29578 degrees.
Zhè这
ge个
jiǎo角
de的
dà大
xiǎo小
shì是
yī1
hú弧
dù度
。
This angle measures one radian.
Jì计
suàn算
sān三
jiǎo角
hán函
shù数
shí时
，
cháng常
jiāng将
jiǎo角
dù度
zhuǎn转
huàn换
wéi为
hú弧
dù度
。
When calculating trigonometric functions, angles are often converted to radians.
Show 1 more exampleShow fewer examples
Yī1
hú弧
dù度
yuē约
děng等
yú于
wǔ5
shí7
qī度
dù1
shí7
qī分
fēn4
sì4
.
shí8
sì秒
。
One radian is approximately equal to 57 degrees, 17 minutes, and 44.8 seconds.