A rhombus has diagonals perpendicular to each other.
1. Draw AC = 6.3 cm
2. Draw perpendicular bisector XY of AC intersecting AC at O.
3. Taking O as centre and 1/2 × 5.8 = 2.9 cm as radius draw two arcs intersecting OX and OY at B and D respectively.
4. Join AB, BC, CD and AD.
ABCD is the required rhombus.