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What Is The Area Of This House-like Box: A Math Question Like This Is Likely To Be On The CSEC Exams

The figure below, not drawn to scale, is a house-like box structure in the shape of a prism, with cross section ABCDE. F is the midpoint of BE, and angle DCB and anagle EDC = 900.

Question: What is the area of ABCDE?

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sajian

May 14, 2018
86

Christina

Feb 11, 2018
67.9cm²