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Josie wants to hang a “Happy Birthday” banner across the diagonal of a rectangular opening that has a width of 9 feet and a height of 12 feet.
How many inches long should the banner be?

Respuesta :

If the answer is 29 then the correct formation of the equivalent answer would be 245

Length of banner is 15 feet

Given that;

Width of rectangle = 9 feet

Length of rectangle = 12 feet

Find:

Length of banner

Computation:

Length of banner = Length of diagonal

[tex]Length\ of\ diagonal = \sqrt{Length^2 + Width^2}\\\\ Length\ of\ diagonal = \sqrt{12^2 + 9^2}\\\\ Length\ of\ diagonal = \sqrt{144 + 81}\\\\ Length\ of\ diagonal = \sqrt{225}\\\\ Length\ of\ diagonal = 15 \ feet[/tex]

So,

Length of banner = 15 feet

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