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Mathematics 9 Online
OpenStudy (anonymous):

Fill in the blank Cos _____ equals 1/2 A. 60 deg B. 30 DEG C. 45 deg D. 90deg

OpenStudy (anonymous):

Let me just get out my notes for a second . . .

OpenStudy (anonymous):

kay

OpenStudy (lucaz):

it's a very good idea to memorize the sine and cosine of 30 45 and 60 degrees http://image.tutorvista.com/content/feed/u346/mom.GIF

OpenStudy (anonymous):

I have that the answer = 60 degrees. Does that make sense?

OpenStudy (anonymous):

tnx lucaz

OpenStudy (anonymous):

yea it made sense tnx

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