melindalwashi melindalwashi

14-02-2018
Mathematics

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Donna's TV screen is 20 inches long. If the diagonal measures 25 inches, how long is the width of Donna's TV?

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SuperK777 SuperK777

14-02-2018

25^2 - 20^2 = A^2
225 = A^2
The sq root of 225 = 15
The width of Donna’s TV is 15 inches.
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