Answer:
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The longest straight line is the line connecting the two opposite corners.
This is a diagonal of the rectangle.
Use Pythagorean theorem to find the length of the diagonal, the hypotenuse of the triangle with legs 20 in and 15 in:
- [tex]d = \sqrt{20^2+15^2} =\sqrt{400+225} =\sqrt{625} =25[/tex]
Hence the longest straight line is 25 in long.
