Trigonometry Jokes and Puns

This collection of trigonometry jokes and puns will help bring a spark of fun and humor to your trig lessons. Get ready to make your students laugh! (Or groan…)

As a high school math teacher, I have been collecting mathematical jokes and math puns for years to add to my math lessons. I want to make it easy for you to do the same with these funny trigonometry puns. 

These hilarious trig jokes are school-appropriate and teacher approved. These jokes would be appropriate for any trigonometry or precalculus class at the high school or university level. If you teach more than just trigonometry, I suggest checking out my collection of over 100 of the best math jokes or my free printable math joke of the week posters. I also have an entire collection of geometry jokes.

General Trigonometry Jokes

• Why was the trigonometry book sad? It had a lot of problems. 
• What did one trigonometry book say to the other? Don’t bother me! I’ve got my own problems.
• What is the best way to pass a trigonometry test? Know all the angles.
• Why wasn’t the trigonometry teacher at school? Because she sprained her angle!
• What is a trigonometry teacher’s favorite animal? A hippopotenuse. (hypotenuse)

Sin, Cos, and Tan Jokes

These trig jokes feature the three basic trig functions: sine, cosine, and tangent.

• Why couldn’t the angle get a loan? His parents wouldn’t cosine.
• What do you call a gentleman who spent all the summer at the beach? A tangent. 
• Why didn’t sin and tan go to the party? Just cos. 
• How do deaf mathematicians communicate? Sine language
• Why was math class so long? The teacher kept going off on a tangent.
• Why did the math professor divide sin by tan? Just cos.
• Why should you take your math teacher to the bank with you? Because he/she will be the best person to cosine for you.
• Why did a priest refuse to learn trigonometry? Because it is full of sin.
• What do mortgages and trigonometry have in common? You have to sine and cosine.
• What do you call a researcher who is good at trigonometry? A sinentist!
• What is the opposite of a stop sign? A cosine. (A go sign!)
• What does trigonometry have in common with the beach? Tangents.
• Why did you divide sin by tan? Just cos.
• What is a trigonometry teacher’s favorite food? COS Law! (coleslaw)

Csc, Sec, and Cot Jokes

These jokes feature the reciprocal trig functions: cosecant, secant, and cotangent.

• What do you call an insect that’s not feeling well? A secant (sick ant)
• Why should you always follow your instincts when doing trigonometry? Because you might have secant thoughts and go off on a tangent

Triangle Jokes

• What did the triangle say to the circle? You’re pointless!
• Which triangles are the coldest? Ice-sosceles Triangles
• Why is the obtuse triangle always upset? It is never right.
• Why did the 30-60-90 triangle marry the 45-45-90 triangle? They were right for each other.
• Why was the triangle the MVP of the basketball team? It always made three-pointers. 
• What do you call a teapot of boiling water on top of a mountain? A high-pot-in-use.
• Why did Albert Einstein and Pythagoras go to small claims court? To fight for possession of C squared!
• What do they call the longest side of a right triangle in the forest? A Hypoten-Moose!

Angle Jokes

• Why did the obtuse angle go to the beach? It was over 90 degrees.
• What do you call an angle that is adorable? Acute angle
• How do you keep warm in a cold room? You go to the corner because it’s always 90 degrees.
• Why did the mathematician spill all of his food in the oven? The directions said, “Put it in the oven at 180°”.
• What do mathematicians do after a snowstorm? Make snow angles!
• Did you hear about the overeducated circle? It has 360 degrees!
• Why are obtuse angles always sad? Because they are never right.