I dance in the angles where right turns abide, Where the square of the long is the sum of the side. A name lost in centuries, yet still I remain, A theorem unspoken, yet known through the strain.

I sound like I'm a man who's been kissed by the sun. I'm featured in a subject many consider unfun. Our paths will not cross, but we'll meet at one. Oh by the way, do you like puns?

I can be first and last for everyone, but none for all. Each time you see me, I'm never having fun, Take me, eat me, or hide me, just not away. You'll find that I provide a means of escape, two for flee.

I am naught but a border, particularly for figures of geometry. circles adore, the rest general bore me, so unscramble this word for a jest.

When one door closes, I come knocking. Some people catch me, some people let me slip. I’m hard to find. I’m hard to make. I’m taken for granted when fear takes place.