In a parallel universe, bird watchers who are tired of sunburns and bug bites have taken up a tamer, more indoor interest: polygons. The ex-birders go from figure to figure, tracing the existing line segments, trying to spot geometric shapes with various numbers of sides. In the figure below, they’ve found shapes with three, four and five sides.
In this new hobby, the former birders seek only polygons: closed shapes with no holes, no crisscrossing edges and no corners touching each other.
Can you spot the seven-sided shape in the figure? (There’s only one, assuming we consider rotations and reflections to be the same shape.)
Can you spot all five six-sided shapes in the figure?
Looking for answers? Go to sciencenews.org/puzzle-answers. We’d love to hear your thoughts. Email us at [email protected].
