Two intersecting circles with a triangle connecting them. Show that the three red points are collinear.
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Solution
Please find here the solution of the author.

Two intersecting circles with a triangle connecting them. Show that the three red points are collinear.
Scroll down for a solution to this problem.
Please find here the solution of the author.
Two intersecting circles with a triangle connecting them. Show that the red points are collinear. https://t.co/JO2XMwfj4k By @MarshallWBuck pic.twitter.com/7Ittr8dIP8
— Mirangu (@Mirangu1) July 28, 2023
One reply on “Angle chasing galore”
The picture has mislead some viewers. The point where the orange and purple segments meet can be moved anywhere along the base of the blue triangle.
In particular, the line connecting the red dots is not in general parallel to the base of the blue triangle.