See attached picture from a book. Unclear to me how to do this problem. Found in OLD science/engineering book from the 50's and was curious how to attack it (i apparently forgot geometry?
Here is my attempt to convert that picture, which as all the available information, into a word problem....in case you can't see the scan image from the book.
Circle1 with center at origin with radius= 1.5.
Circle2 sitting on X axis with diameter=D touching Circle1 at exactly one point.
Distance on X axis from Origin to the right-most-side of Circle2 (i.e. a perpendicular line to X axis that is tangent to Circle2) is 2.5
SO: Find "D"
I suspect it is trivial congruent triangles or something but it could require something more advanced. I don't see the answer.
Thanks for any help....
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