Yes.
An ellipse is a shape on which the sum of the distances from every point to two points inside called the foci (focuses) is always the same number. A circle is an ellipse with both foci (focuses) at the same point.
focus
The two central points of an ellipse are officially known as the foci (plural of focus).
Foci (correct plural of focus)
Yes.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
true
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
true
What are two points inside a ellipse
An ellipse is a shape on which the sum of the distances from every point to two points inside called the foci (focuses) is always the same number. A circle is an ellipse with both foci (focuses) at the same point.
An ellipse has 2 foci. They are inside the ellipse, but they can't be said to be at the centre, as an ellipse doesn't have one.
Orbits are shaped like an ellipse, with the star at the focus. An ellipse does not have a constant radius.
focus
The two central points of an ellipse are officially known as the foci (plural of focus).