What is the formal definition of diction?

My answer is in the explanation

Explanation:

Formal Diction. Contains language that creates an elevated tone. It is free of slang, idioms, colloquialisms, and contractions. It often contains polysyllabic words, sophisticated syntax, and elegant word choice.

can you say more details

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.