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OpenStudy (anonymous):
If the sin 30° is 1 over 2, then the cos ____° = _____. A) 60° ; 1/2 B) 30° ; square root 2/2 C) 60° ; square root 3/2 D) 30° ; 1
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OpenStudy (kropot72):
|dw:1403757806331:dw| You can see from the above useful sketch, that sin 30 degrees = 1/2. Can you now choose the correct answer?
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