A radian. Math majors don't use degrees.
Helen Keller's face after she tries to use a fork.
I said "Dude... it's 2014, you can use whichever printer you want"
They prefer radians.
It's already got thousands of degrees.
Because they have three hundred and sixty degrees.
Thesus
He went to Europe to study a-Broderick
Gee, I'm a tree.
Because Oct 31 is Dec 25