Question 1013747
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Each of the blocks is presumably a rectangular solid, hence each block has 6 faces, 2 each 50 X 5 inches, 50 X 2 inches, and 5 X 2 inches.  If you glue the largest area faces together you will get the smallest overall surface area, and if you glue the smallest areas together, you get the largest overall surface area.


The total surface area of one of the blocks is 2 times 250 square inches plus 2 times 100 square inches plus 2 times 10 square inches for a total of 720 square inches.


The total surface area of three blocks glued together is the sum of the surface areas of the three blocks minus 4 times the area of the sides that are glued together.


720 times 3 is 2160 minus 4 times 250 is 2160 minus 1000 is 1160.  720 times 3 is 2160 minus 4 times 10 is 2160 minus 40 is 2120.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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