What is a lyrical poem? explain in great detail

Lyric poems have a musical rhythm, and their topics often explore romantic feelings or other strong emotions. You can usually identify a lyric poem by its musicality: if you can imagine singing it, it's probably lyric. In ancient Greece and Rome, lyric poems were in fact sung to the strums of an accompanying lyre. It's the word lyre, in fact, that is at the root of lyric; the Greek lyrikos means "singing to the lyre."

https://www.vocabulary.com/dictionary/lyric%20poem 

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.