In a circle of radius $r$, the chord subtending angle $\theta$ at centre has length

In a circle of radius $r$, the chord subtending angle $\theta$ at centre has length
  1. $2r \sin(\theta/2)$
  2. $2r \cos(\theta/2)$
  3. $r \sin\theta$
  4. $r\theta$

Solution

Chord-angle formula.

Asked in: MH-SSC-9

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