A bookcase is 3 ft. high and 3 ft. wide. Two braces are going to be built to diagonally across the back of the case. How long is the piece of wood that is needed to build each brace?
(I'd really appreciate it if you include the solution, thank you!)
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Answer:
9 + 9 = x^2
18 = x^2
x = 3√2 ft
Step-by-step explanation: