If the latus rectum of an ellipse is one half of its minor-axis, then its. eccentricity is

If the distance between the foci of an ellipse is equal to length of minor axis, then its eccentricity is

If the length of the major axis of the ellipse is three times the length of its minor axis, then its eccentricity is :

If the length of the major axis of an ellipse in 3 times the length of minor axis , then its eccentricity is

In an ellipse, if the lines joining focus to the extremities of the minor axis form an equilateral triangle with the minor axis, then the eccentricity of the ellipse is :

The angle between the line joining the foci of an ellipse to one particular extremity of the minor axis is 90^@ . The eccentricity of the ellipse is :

The latus rectum of the ellipse 16x^2+y^2=16 is:

In an ellipse, the distances between its foci is 6 and minor axis is 8 . Then its eccentricity is

If (2,4) and (10,10) are the ends of a latus rectum of an ellipse with the eccentricity 1/2 , then the length of semi-major axis is: