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Gruber's Math Workbook Help

matt110029matt110029 Posts: 8Registered User New Member
edited November 2012 in SAT Preparation
Does anyone have Gruber's Math Workbook that can help me understand the problem on page 268.

((1/2)(AB)h)/((1/2)(AB)h)=1/3

Why is the second AB not AD since its the base of the whole triangle? And where did the 1/3 come from?
Post edited by matt110029 on

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