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to subtend
01
对立
be opposite to; of angles and sides, in geometry
例子
To find the length of a chord, you can use the circle's radius and the central angle subtended by the chord.
When measuring angles in radians, a sector can be defined by the central angle and the length of the arc it subtends.
In geometry, a circular segment is the region bounded by a chord and the arc of the circle subtended by the chord.
