Question

Which of the following is equal to the length of the major axis of an ellipse?

Answer 1

`major\ axis=a+b\\\\Answer:\ \text{The sum of focal radii}`

Answer 2

Second Option is correct that is the sum of the focal radii.

Explanation:

Given: Ellipse

To find: Length of the Major Axis.

Focal Radii is the length of the line connecting the focus of ellipse and a point on the ellipse.

We know that Sum of Focal Radii is a constant and Equal to the Length of the Major Axis.

Therefore, Second Option is correct that is the sum of the focal radii.