1993 AHSME Problems/Problem 29

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Problem

Which of the following could NOT be the lengths of the external diagonals of a right regular prism [a "box"]? (An $\textit{external diagonal}$ is a diagonal of one of the rectangular faces of the box.)

$\text{(A) }\{4,5,6\}} \quad \text{(B) } \{4,5,7\}} \quad \text{(C) } \{4,6,7\}} \quad \text{(D) } \{5,6,7\}} \quad \text{(E) } \{5,7,8\}}$ (Error compiling LaTeX. Unknown error_msg)

Solution

$\fbox{B}$

See also

1993 AHSME (ProblemsAnswer KeyResources)
Preceded by
Problem 28
Followed by
Problem 30
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