Two sides of a triangle are given by the...

Two sides of a triangle are given by the roots of the equation `x^2-5x+6=0` and the angle between the sides is `pi//2`. Then the perimeter of the triangle is

A

` 5+ sqrt2`

B

` 5+ sqrt3`

C

` 5 + sqrt5`

D

` 5+ sqrt7`

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The correct Answer is:

D

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