The diagonals of a rhombus are of length 24 cms and 10 cms. The perimeter of the rhomus is

72 cms
68 cms
56 cms
52 cms

The correct answer is (a) 72 cms.

A rhombus is a quadrilateral with four sides of equal length. The diagonals of a rhombus bisect each other at right angles.

In this case, the diagonals of the rhombus are 24 cms and 10 cms. This means that the two shorter sides of the rhombus are 12 cms each, and the two longer sides of the rhombus are 10 cms each.

The perimeter of a rhombus is the total length of all four sides of the rhombus. In this case, the perimeter of the rhombus is $12 + 12 + 10 + 10 = 72$ cms.

The other options are incorrect because they do not equal the perimeter of the rhombus.