Tangent circles in orthocenter configuration
Source: Latvian TST for Baltic Way 2019, Problem 10
June 4, 2020
geometryorthocentertangent circlescircumcircle
Problem Statement
Let be an acute angled triangle with orthocenter and let be a midpoint of . Circle with diameter is and circle with center is . If is tangent to circumcircle of , then prove that circles and are tangent to each other.