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Mathematics 20 Online
OpenStudy (linn99123):

What is cos D? A.33/65 B.33/56 C.56/65 D.56/33 http://static.k12.com/calms_media/media/1422500_1423000/1422778/1/87e00ead206b2d7bfd53161e009a25bffe794405/MS_PA_131002_171226.jpg

OpenStudy (anonymous):

SOH CAH TOA - The first letters meaning Sine, Cosine, Tangent

OpenStudy (linn99123):

@iPwnBunnies

OpenStudy (anonymous):

Since we need cos, we need CAH.

OpenStudy (anonymous):

The AH and CAH means \[\frac{ adjacent }{ hypotenuse }\]

OpenStudy (linn99123):

i tihnk C

OpenStudy (anonymous):

But it's not C

OpenStudy (anonymous):

That would be \[\frac{ opposite }{ hypotenuse }\]

OpenStudy (anonymous):

The cosine of D is \[\frac{ adjacent }{ hypotenuse }\] Which is \[\frac{ 33 }{ 65 }\]

OpenStudy (anonymous):

To avoid getting adjacent and opposite confused, I do this: The adjacent is the side beside the angle that's not the hypotenuse.

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