Radian
It is the angle subtended by
an arc at the center of the
circle whose length is equal
to the radius of circle.??,in which condition
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Answer:
The angle subtended at the centre is the angle subtended by an arc or a chord or a sector at the centre of a circle. It is referred to as the central angle. ... The angle subtended at the centre is double the angle subtended at the circle by the arc, chord, sector.
Explanation:
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