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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% q2 a7 b% ^) GA: A tangent.

% T! G  }/ R1 E2 R9 S5 b2 {, |" xtangent  
9 R) r3 q1 L$ M$ B2 O: [0 _ noun
! G% P$ Q- c) z (geometry) a straight line that touches the outside of a curve but does not cross it