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Please help meeeeeeee

Please help meeeeeeee-example-1
User Zsawyer
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1 Answer

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Explanation:

For a RIGHT triangle , remember S-O-H-C-A-H-T-O-A ?

Cos (Φ) = Adjacent leg / Hypotenuse

so cos D = sqrt (78) / DF = sqrt (78) / 28

User Eben Geer
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