How does odysseus reveal his true identity to eumaeus and philoetius, and what does he promise them if they vanquish the suitors?

While the suitors are all getting ready to face Penelope's test, Odysseus meets outside with Eumaeus and Philoetius. These are two servants of his household. Inside the house, the suitors are inevitably failing the test. However, outside, Odysseus is trying to find out whether the servants are still loyal to him. He reveals his identity to them by showing them the scar on his foot, and he promises that if they help him win, he will treat them like his own sons.

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.

what is margin again? i’m confusion