The semimajor axis of an ellipse is
A) the distance from one focus to any point on the circumference of the ellipse.
B) the distance from the center to one side of the ellipse along the shortest diameter of the ellipse.
C) the distance from the center of the ellipse to one end along the largest distance across of the ellipse.
D) half the distance between the foci of the ellipse.

Question

Quizplus · Accepted Answer

The semimajor axis of an ellipse is the distance from the center of the ellipse to one end along the largest distance across the ellipse, which is essentially half the length of the longest diameter of the ellipse.

The Semimajor Axis of an Ellipse Is