Two circles are tangent to two perpendicular lines and have their centres connected. Prove that the green triangle is right isosceles.
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Solution

Two circles are tangent to two perpendicular lines and have their centres connected. Prove that the green triangle is right isosceles.
Scroll down for a solution to this problem.
Two circles are tangent to two perpendicular lines and have their centres connected. Prove that the green triangle is right isosceles. https://t.co/fNr1zULHf2 pic.twitter.com/XASp1TBVzX
— Mirangu (@Mirangu1) March 8, 2023