Assertion: ellipse's point | /r/HasProperty | blue tacks
Facets:
Source sentences:
text: To draw this set of points and to make our ellipse, the following statement must be true: if you take any point on the ellipse, the sum of the distances to those 2 fixed points ( blue tacks ) is constant.
text: To create this set of points and to make our ellipse, the following statement must be true: the sum of the distances from anywhere on the ellipse to those 2 points ( blue tacks ) must be that constant number .