Inradius of triangle equals (Area $/$ Semiperimeter), denoted $r =$

Inradius of triangle equals (Area $/$ Semiperimeter), denoted $r =$
  1. $\dfrac{A}{s}$
  2. $\dfrac{s}{A}$
  3. $\dfrac{A}{2s}$
  4. $\dfrac{s}{2A}$

Solution

Standard formula.

Asked in: MH-SSC-9

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