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Which of the following explains why mc011-1.jpg using the unit circle?

User Notedible
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A. The side opposite a 30° angle is the same as the side adjacent to a 60° angle in a right triangle. On a unit circle, the y (sin) distance of a 30° angle is the same as the x (cos) distance of a 60° angle.
User Tetiana Chupryna
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