I received this one via e-mail; I’ll be happy to cite the source if anyone knows it. (Late edit: http://www.lefthandedtoons.com/1835/)

# Trigonometry Pun

Posted in Humor, Precalculus

*Posted by John Quintanilla on February 4, 2016*

https://meangreenmath.com/2016/02/04/trigonometry-pun/

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## Joseph Nebus

/ February 6, 2016It looks to be the Left-Handed Toons dated the 1st of October, 2015. If I’m following the attributions correctly this one would be by Drew Mokris, although the series is by a pair of cartoonists who also draw the web comic Invisible Bread.

## John Quintanilla

/ February 6, 2016Thanks!