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What the answer to the question

What the answer to the question-example-1
User Ngreen
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1 Answer

1 vote

Answer:

6.1

Explanation:

use law of cosines

d² = e² + f² - 2ef cos D

d² = 9² + 10² - 2(9)(10) cos 37

d² = 81 + 100 - 143.75

d² = 37.25

d = 6.1

User Dehasi
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