Assertion: ellipse's axis | /r/CapableOf | cross focal points
Facets:
value: to major axis
type: TRANSITIVE-OBJECT
Source sentences:
text: А 1 А 2 = 2a - major axis (larger direct that crosses focal points F 1 and F 2 ) B 1 B 2 = 2b - minor axis (smaller direct that perpendicular to major axis and intersect it at the center of the ellipse О) a - semi-major axis b - semi-minor axis O - center of the ellipse