Which of the following figures is the odd one out?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) →

Look at the outlines. Three figures are closed figures (the outline has no break). Option (1) has a gap in one side, so it is an open figure and the odd one out.

Option (2) — Incorrect. A rhombus: a closed figure.
Option (3) — Incorrect. A triangle: a closed figure.
Option (4) — Incorrect. A hexagon: a closed figure.