stanza 2...

*Four circles to the kissing come.*

*The smaller are the benter.*

*The bend is just the inverse of*

*The distance from the center.*

*Though their intrigue left Euclid dumb*

*There's now no need for rule of thumb.*

*Since zero bend's a dead straight line*

*And concave bends have minus sign,*

*The sum of the squares of all four bends*

*Is half the square of their sum.*