# Question #2f37e

##### 1 Answer

Mar 16, 2016

#### Explanation:

The #triangle F1TF2 is isosceles, with F1T =- F2T = semi-major axis a..

F1F2 = 2ae, where e is the eccentricity of the ellipse,

The altitude from T = the semi-minor axis b = a

F1P + F2P = 2a, for any point P on the ellipse.

Here,

So e =

b =