In a rhombus, the diagonals:

In a rhombus, the diagonals:
  1. Are equal
  2. Bisect each other at right angles
  3. Are parallel
  4. Are equal to the sides

Solution

Diagonals of a rhombus bisect each other at right angles ($90^{\circ}$). They are usually unequal.

Asked in: IMO

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