Question

The length of the major axis of the ellipse below is 17 and the length of the red line segment is 6. How long is the blue line segment?

Answer 1

Answer:

Option B. 11

Step-by-step explanation:

See the attached figure

As the figure about an ellipse

So, The sum of distance between A and the foci will be equal the major axis

AB = 6 and the major axis = 17

∴ AB + AC = major axis

∴ 6 + AC = 17

∴ AC = 17 - 6 = 11

So, the length of the blue line segment = 11