The Dying Romantic Mathematician

“Your trapezoid is vectored to a sphere”
She sighed, “and parallels are polygon.”
“All, all is perpendicular,” he coughed,
“And arcs are so rectangle to sad Pi
Equiangular in the radius
And rhombus has gone Pythagorean.
O canst thou concave the isosceles?”
“Yes!” she coplanared. “Yes!” he gasped in pain,
“Oh, yes, our love is solved for X!"
                                                                He died,
Quadratic equations upon his lips