SOLUTION: What is the eccentricity 1/3, distance between foci 2?

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Question 1051838: What is the eccentricity 1/3, distance between foci 2?
Answer by addingup(3677) About Me  (Show Source):
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an ellipse that has eccentricity 1/3 and you want to find the distance between 2 directrix given that the distance between foci is 2.
2ae = 2
2a*1/3 = 2
2a/3 = 2
2a = 6
a = 6/2 = 3
:
diatnce between the directrix =2a/e
2*3/1/3 = 6/1/3 = 6*3 = 18