Two sides of a triangle are $4$ cm and $5$ cm. Third side cannot be

Two sides of a triangle are $4$ cm and $5$ cm. Third side cannot be
  1. $10$ cm
  2. $2$ cm
  3. $5$ cm
  4. $8$ cm

Solution

Third side must satisfy $|4-5| < x < 4+5$, i.e. $1 < x < 9$. $10$ exceeds.

Asked in: MH-SSC-9

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