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Mathematics 23 Online
OpenStudy (anonymous):

is the answer B? i just wanna double check. http://imageurl.org/?di=6KXJ

OpenStudy (saifoo.khan):

Use cos ratio.

OpenStudy (anonymous):

so it is?

OpenStudy (saifoo.khan):

20 cos 60 = answer.

OpenStudy (anonymous):

thank you.

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