The rectangular prism will fit in the pole if the longest diagonal in the pole is less than 13 feet.
The longest diagonal (d) in the prism is calculated using;
[tex]d = \sqrt{x^2 + y^2 + z^2[/tex]
Where x, y and z are the dimensions of the prism.
Assume the dimensions are: 4, 5 and 6 feet,
The formula becomes
[tex]d = \sqrt{4^2 + 5^2 + 6^2[/tex]
[tex]d = \sqrt{77[/tex]
[tex]d = 8.8[/tex]
Using the assumed dimensions, the rectangular prism will fit in the pole if the longest diagonal.
This is so because: 8.8 feet is less than 13 feet
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