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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?​

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?​
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4 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?​

asked
User Eric Cochran
by
8.7k points

1 Answer

5 votes

Answer:

L = 12 inches

Explanation:

Using the Pythagorean theorem:

15² - 9² = L²

L² = 144

L = 12 inches

answered
User Arseniyandru
by
8.1k points
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