The Geometry Lesson

Curves slid against the solid flatteness,
Hemispheres distended the apexes extruding,
Triangulation widened to accept the straightness,
An oval gaped devouring a column,
Angles motioned from acute to right to obtuse,
Cyclic function becomes established,
Spiralling to conjunction,
Hardness trembles and dissolves to softness,
The square had been circled,
The geometry lesson ended.