Correct Answer: Option A

Explanation

Perimeter of a Rhombus = 4L or 2√( d1\(^2\) + d2\(^2\))

P = 2√(12\(^2\) + 5\(^2\))

P =  2√(144 + 25)

P =  2√169 = 2 * 13

P = 26cm

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