In a rectangle of sides $3$ and $4$, length of diagonal is

In a rectangle of sides $3$ and $4$, length of diagonal is
  1. $5$
  2. $7$
  3. $\sqrt{7}$
  4. $3.5$

Solution

$\sqrt{3^2+4^2} = 5$.

Asked in: MH-SSC-9

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