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Mathematics 7 Online
OpenStudy (moongazer):

Why is it the sine of an angle is also equal to the sine of 180 minus that angle ? e.g. sin 45degrees = sin 135degrees

OpenStudy (anonymous):

Because the elevation of the inscribed triangle (to the unit circle) is still positive.

OpenStudy (moongazer):

I also noticed that.

OpenStudy (anonymous):

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