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From Tangent to Circle (Posted on 2017-01-04) Difficulty: 2 of 5
The line Ax+By=C (with C nonzero) is tangent to some circle centered at the origin.

What is the radius of that circle in terms of A, B, and C?
What is the point of tangency in terms of A, B, and C?

No Solution Yet Submitted by Brian Smith    
Rating: 3.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Alternate solution Comment 4 of 4 |
(In reply to Alternate solution by Jer)

Ah, very good, Jer.  I had been wondering why Brian asked for the radius first and the point of tangency second.  Maybe his solution was more like yours.  Charlie and I determined the point of tangency first.
  Posted by Steve Herman on 2017-01-06 08:47:19

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