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September 17th, 2014, 06:34 AM   #1
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Question Calculating Circle Center Point With radius

Hello,

I am trying to calculate the center point of a circle resting in a v shape. I can get the radius and the angle and position of the v. Is there a way to accomplish this?

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September 17th, 2014, 07:58 AM   #2
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See the drawing below. You know the bottom angle, so you can calculate the remaining angles of the lower triangle, and hence all other angles.

You know the radius of the circle, so you can calculate all lengths.
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September 17th, 2014, 12:06 PM   #3
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AB = AC/sin(B/2)
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September 17th, 2014, 03:53 PM   #4
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I learned from here.

How to construct (draw) tangents to a circle through an external point - Math Open Reference



Proof

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