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# DS: Coordinates

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VP
Joined: 02 Jun 2006
Posts: 1260

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14 Sep 2006, 22:34
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Senior Manager
Joined: 11 May 2006
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14 Sep 2006, 22:51
B

let D be the point on the triangle base such that CD is parallel to X axis

1) gives location of B - cannot determine height and base - not sufficient

2) gives location of C => CD (height) is known. So we can find other sides of the equilateral triangle and hence determine the area.
14 Sep 2006, 22:51
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