The diagonals of a rhombus are? A. Perpendicular

B. Sometimes equal

C. Parallel

D. Never congruent

By definition we have that the diamond is:

The rhombus is a parallelogram (and therefore a quadrilateral) whose four sides are of equal length and whose diagonals are cut perpendicularly.

Therefore, its diagonals are perpendicular.

Answer:

The diagonals of a rhombus are:

A. Perpendicular