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Math Help - Find the end point

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    Find the end point

    Find the endpoint of the radius of the unit circle that makes a 135 degree angle with the positive horizontal axis. I drew a triangle but I am not quite sure what to do. I have 180 degrees - 135 degrees and ended up with 45 degrees. So in that triangle that I drew inside the circle it will have 45 degrees, and then how would I find the end point that that degree?
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    Re: Find the end point

    Quote Originally Posted by Eraser147 View Post
    Find the endpoint of the radius of the unit circle that makes a 135 degree angle with the positive horizontal axis. I drew a triangle but I am not quite sure what to do. I have 180 degrees - 135 degrees and ended up with 45 degrees. So in that triangle that I drew inside the circle it will have 45 degrees, and then how would I find the end point that that degree?
    what do you mean by the "endpoint" ? where the ray intersects the unit circle? if so ...

    x = \cos(135^\circ) = -\frac{1}{\sqrt{2}}

    y = \sin(135^\circ) = \frac{1}{\sqrt{2}}
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