Question

How do you find the latus rectum of an ellipse?

Answer 1

lr is a line passing through focii and perpendicular to the axis of the ellipse

Answer 2

So the latus rectum is the major axis?

Answer 3

its perpendiculsr to the major axis

Answer 4

But then how would it go through the focii? Does it only go through one of the focii and there are two latus rectum?

Answer 5

there are two latus rectum through two focii

Answer 6

Is that right?

Answer 7

If it is, is there a special way to find the length like how there is in a parabola?

Answer 8

@dpaInc Can you help me?

Answer 9

@jim_thompson5910

Answer 10

@apoorvk

Answer 11

Latus Rectum:

Latus Rectum is the line which passes through the focus of the ellipse and perpendicular to the major axis.

End points of the Latus Rectum are given by(ae, (b^2)/a) and (ae,(-b^2)/a).

Also the length of Semi Latus Rectum is given by (b^2)/a..

Answer 12

Thank you!

Answer 13

Welcome dear...