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OpenStudy (anonymous):
a bookcase is 3 feet high and 3 feet wide. Two braces are going to be built to diagonally cross the back of the case. How long is the piece of wood that is needed to build each brace ?
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OpenStudy (anonymous):
use Pythagorean theorem. 3 ft. is both the height and width of the triangle.
OpenStudy (anonymous):
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