Question 226531
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A rectangular block has six rectangular faces and the total surface area of the block is the sum of the areas of these six faces.  For your block, there are two 10 by 7 cm faces, two 10 by 4 cm faces, and two 7 by 4 cm faces.  Just do the arithmetic.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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