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# Newbie Trig Question

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I have spent the last few hours on some math sites trying to see if I could learn enough to solve a trig problem. Unfortunately, I wasn''t made to take trig in high school and now that I''m old I feel that I''m having trouble learning (it is also quite possible that I am just dumb). Given the information in the image, is it possible to determine the x and y value at point P? I would appreciate any help!

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Is the verticle line supposed to go through the middle of the circle?

[edited by - PlayGGY on February 21, 2004 10:45:19 PM]

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Yeah, use your imagination and pretend the X and Y axis were pefectly through the center of the circle. =)

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I'll go ahead and say that it is impossble from the information in that picture to tell the X and Y of that point. The triangle could be at any angle, so you cannot tell at what point on the cirumference the triangle is touching.

EDIT: I haven't taken trig yet, but I am still sure that I am correct.

[edited by - PlayGGY on February 21, 2004 10:52:47 PM]

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quote:
Original post by frank_rizzo
Given the information in the image, is it possible to determine the x and y value at point P?

I don''t think so. If you imagine P sliding up and down the circumference of the circle, none of the given information changes, therefore P cannot be uniquely determined by that information.

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I don''t think the fact that there is a circle is relevant because only one point lies on the edge (p). Then again, maths isn''t my sepcialty.

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That sounds like it makes sense.

Without a relationship from the triangle to the parent circle it wouldn''t be possible to determine a point on the circumference.

Thanks PlayGGY

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If you at least knew the angle between the points P and C,(c=center of circle) then it would be possible given the length of the hypotenuse.

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Closed. I know this may not be homework, but it might be, and the poster didn''t document his thought process and conclusion before asking for an answer. The answer, by the way, as others said, is no, you can''t find the x and y value at p without more information.

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.

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