In a circle of radius $10$ cm, a chord at distance $6$ cm from centre has length

In a circle of radius $10$ cm, a chord at distance $6$ cm from centre has length
  1. $16$ cm
  2. $8$ cm
  3. $4$ cm
  4. $20$ cm

Solution

Half-chord $= \sqrt{100 - 36} = 8$. Chord $= 16$.

Asked in: MH-SSC-9

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