Olympiad Geometry Problem #43: IMO 2017 #4

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Here is a nice problem from the 2017 IMO. Given two circles and a tangent line to one of the circles, you have to end up showing a different line is tangent to the other circle. Enjoy! Link below.
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Perfect solution! 😍
We have AT || RK follow Reim's Theorem.

chetdivedau
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Hello, good evening as per Indian time.
nice solution just in two lines.
I have a suggestion regarding video, that try to record only solution area in screen recording by coustom recording it will increase visibility and font size in video or otherwise try to increase font size.
I suggested this as to watch it in ipad is good but in mobile not so much okey.
I am also waiting for a nice solution of 2011/6 IMO.
👍 Keep it up.

omparkash-njzy