What would the advertised size of a TV be if its length and width are 20 inches by 21 inches?

asked Nov 27, 2022 90.9k views

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What would the advertised size of a TV be if its length and width are 20 inches by 21
inches?

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Answer:

29 inches

Explanation:

pythagoras theorem : 20^2 + 21^2 = \sqrt{841}

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