MathDB
Think inside the quadrilateral parallelogram! (BMT 2019 Geo #3)

Source:

May 10, 2019
geometryparallelogram

Problem Statement

Let ABCD ABCD be a parallelogram with BC=17 BC = 17 . Let M M be the midpoint of BC \overline{BC} and let N N be the point such that DANM DANM is a parallelogram. What is the length of segment NC \overline{NC} ?