“What was the geometry student looking for at the beach?”/“A tangent.”

The word “tangent” is connected with an obvious math pun:
 
Q: What was the geometry student looking for at the beach?
A: A tangent.
 
The joke was cited on Twitter on April 8, 2009.
 
   
Google Groups: comp.graphics.apps.paint-shop-pro
Quick Way to Straighten Scanned Images
Uni
1/8/02
(...)
Okay, next Summer, I’ll spend more time at the beach and become a TanGent 😊
 
Twitter
Jared Stehler
‏@jstehler
Q: What was the geometry student looking for at the beach?
A: A tangent.  Haaaaaa haaaaa
8:44 AM - 8 Apr 2009
 
Google Groups: dubukks
A.R. Rahman on the Tonight Show
Subramanian. T
4/8/09
Q: What was the geometry student looking for at the beach? 
A: A tangent.
 
YouTube
Jokes - What was the geometry student looking for at the beach? A tangent.
jokesus
Published on Aug 19, 2015
Joke :
What was the geometry student looking for at the beach?
A tangent.
 
Twitter
Miss Lynch’s Class
‏@mramathletes
What do you call a math teacher who vacations at the beach? A tangent!
6:50 AM - 28 Sep 2015
 
Twitter
queen lex
‏@Lexxi_C
@OPSCHSDECA #FunnyFriday
Q: What was the geometry student looking for at the beach?
A: A tangent.
7:28 AM - 4 Dec 2015
 
Twitter
Math Puns Daily
‏@fey_karl
Q: What do you call a man who spent all summer at the beach?
A: A Tangent
8:08 PM - 23 Jan 2016