TOT 288 1991 Spring A J4 perpendicular, rotate an arc
Source:
June 9, 2024
rotationgeometryperpendicular
Problem Statement
A circle is divided by the chord into two segments and one of them is rotated about the point by a certain angle, the point being taken to . Prove that the line segments joining the midpoints of the two arcs (i.e. the arc which had not been rotated and the rotated arc ) with the midpoint of are perpendicular.(F. Nazyrov, 11th form student, Obninsk)