Which lines are the lines of symmetry of a rhombus that is not a square?
- The two diagonals
- The four sides
- The two midlines
- No line at all
Show answer and solution
Correct answer: A. The two diagonals
1. A rhombus is symmetric across each of its two diagonals.
2. Lines joining the midpoints of opposite sides are mirror lines of a rectangle, not of a plain rhombus.
3. So the lines of symmetry are the two diagonals.
_Source: Wikipedia, Rhombus (CC BY-SA 4.0), Rhombus_