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Arte-miy333 [17]
3 years ago
7

8.) cos D A B C D 6 8

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
6 0

Using Pythagorean theorem, we can find that DG is 10.(I don't think I need to explain this)

Now cosD means the adjacent side over the hypotenuse.

The side adjacent to <D is 6 and the hypotenuse is 10 so

cosD=6/10=3/5

Which means the correct answer is choice D.

Hope this helped!

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