Mirror-Match Gauge
Can you slide the loose dot so it is the SAME distance from the mirror line as its twin — the exact spot where the shape becomes symmetric?
🎯 Both beads the same distance from the mirror line: the balance beam levels and the shape becomes symmetric.
✓ Solved!
A mirror partner is the same distance from the line, on the other side. Read the ruler on each side, then match them — the balance beam shows you when the distances are equal.
← Back to P2.1 Line symmetry