DS - Geometry ETS Question #7 : DS Archive
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# DS - Geometry ETS Question #7

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DS - Geometry ETS Question #7 [#permalink]

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17 Nov 2006, 09:35
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What's the best way to solve for this problem? Answer choice is A.
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17 Nov 2006, 09:39
Ang BDC = Ang BAD + Ang ABD
=> 2X = X + Ang ABD
=> Ang ABD = X

So, AD = DB = BC = 6
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