2 years ago

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

Mathematics

1 answer:

Firdavs [7]2 years ago

8 0

Answer:

20 inches

Step-by-step explanation:

Use the Pythagorean Theorem.

$a^2 + b^2 = c^2\\15^2 + b^2 = 25^2\\225 + b^2 = 625\\b^2 = 400\\b = \sqrt{400} \\b = 20$

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