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10 votes
10 votes
Betty measured the diagonal length of a playing card to be 15 inches. The short side of the card is 9 inches. What is the length of the long side of the playing card?​

User Paul A Jungwirth
by
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1 Answer

15 votes
15 votes

Answer:

L = 12 inches

Explanation:

Using the Pythagorean theorem:

15² - 9² = L²

L² = 144

L = 12 inches

User Dmitry Erokhin
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2.9k points