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13-12-2021
Mathematics

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A 25-inch television has a screen that is 15 inches high. How wide is the screen?

inches

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13-12-2021

Answer:

20 inches

Step-by-step explanation:

Use the Pythagorean Theorem.

[tex]a^2 + b^2 = c^2\\15^2 + b^2 = 25^2\\225 + b^2 = 625\\b^2 = 400\\b = \sqrt{400} \\b = 20[/tex]

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