Assertion: ellipse | /r/HasAspect | 2 foci
Facets:
value: due to symmetry
type: CAUSE
value: at points
type: TEMPORAL
value: in the -plane
type: LOCATION
value: at 2
type: TEMPORAL
Source sentences:
text: An ellipse has 2 foci (plural of focus).
text: Example 1: Find the standard equation of the ellipse having foci at (2, 1) and (-4, 1) and a minor axis of 10.
text: A circle has one center, called a focus, but an ellipse has two foci.
text: Every ellipse has 2 foci and 2 corresponding directrices, due to symmetry.
text: Every ellipse has 2 foci and 2 corresponding directrices , due to symmetry.
text: An ellipse has 2 foci.
text: An ellipse has 2 foci.
text: An ellipse has 2 foci.
text: An ellipse has 2 foci.
text: An ellipse has 2 foci.
text: What is the standard form equation of the ellipse that has vertices ( 0, ± 4 ) and foci ( 0, ± 15 ) ?
text: An ellipse has foci at and in the -plane and is tangent to the -axis.
text: Write an equation for the ellipse having foci at (2, 0) and (2, 0)
text: the ellipse in Figure 3.37 has foci at points F and F '.
text: A circle has one center, but an ellipse has two focuses, or "foci".
text: A circle has one center, called a focus, but an ellipse has two foci.
text: In fact we will soon discover that an ellipse has two foci and two directrices.
text: an ellipse has two foci.
text: An ellipse has two foci.