What was the geometry student looking for at the beach

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Q: What was the geometry student looking for at the beach?
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+ Y0 G( n% f! j$ }. d6 U. lA: A tangent.

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2 t6 |8 Y# g4 C0 A4 {( C; h; M (geometry) a straight line that touches the outside of a curve but does not cross it