Correct Answer: (b) 13 cm

Explanation:

Let ABCD be the rhombus with diagonals AC and BD intersecting each other at O.

AC = 24 cm

BD = 10 cm

Diagonals of a rhombus bisect each other at right angles.

Applying Pythagoras theorem in right-angled triangle AOB,

????????² = ????????² + ????????²

=> 12² + 5²

=> 144 + 25

=> 169

???????? = √169 => 13

Hence, the length of each side of the rhombus is 13 cm.