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August 19th, 2017, 08:17 AM | #1 |
Newbie Joined: Aug 2017 From: Tulsa, OK Posts: 4 Thanks: 0 | Need help calculating coordinates for a tangent point. So let's say I know coordinates for D (-10171.62, 490.26) angle at that point is 75.52. Also, line EF is a section of a line that starts at -10249, 0 and ends at -10094.8, 7615.2. How do I find the coordinates for A? BTW, the angle at A is 91.16 Last edited by skipjack; August 19th, 2017 at 10:34 AM. |
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August 19th, 2017, 08:52 AM | #2 | |||
Math Team Joined: Jul 2011 From: Texas Posts: 2,815 Thanks: 1458 | Quote:
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I advise you to make a better sketch that fits your given information. Last edited by skipjack; August 19th, 2017 at 10:35 AM. | |||
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August 19th, 2017, 09:21 AM | #3 |
Newbie Joined: Aug 2017 From: Tulsa, OK Posts: 4 Thanks: 0 |
Sorry, I found that image on google and thought it may be enough to show the point I'm trying to find coordinates for. I'll try to draw something that will be a little closer visually.
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August 19th, 2017, 09:43 AM | #4 |
Newbie Joined: Aug 2017 From: Tulsa, OK Posts: 4 Thanks: 0 | Trig_Problem.jpg I know the drawing shows the known point on the circle looking more like it is at about 50 degrees, but I hope that is close enough. |
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August 19th, 2017, 10:39 AM | #5 |
Global Moderator Joined: Dec 2006 Posts: 20,269 Thanks: 1958 |
Can you label all relevant points (A, D, E, F, etc.) and mark the known angles?
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August 19th, 2017, 10:51 AM | #6 |
Newbie Joined: Aug 2017 From: Tulsa, OK Posts: 4 Thanks: 0 | |
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August 19th, 2017, 11:20 AM | #7 |
Math Team Joined: Jul 2011 From: Texas Posts: 2,815 Thanks: 1458 |
I'm not seeing the 75.52 degree angle by point D ![]() |
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August 19th, 2017, 10:18 PM | #8 | |
Senior Member Joined: Jun 2017 From: India Posts: 234 Thanks: 6 | Quote: Can you plot all the known points with origin point first, with their labels?, then try to sketch circle & angles. | |
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calculating, coordinates, point, tangent |
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