An alternative simple solution for a geometry problem

In Learning and Teaching Mathematics No. 23, Pillay (2017) presented an interesting multiple solution problem that had previously appeared in the Senior Individual paper of the 2015 South African Mathematics Team Competition. A number of different solution approaches were discussed. This article presents a simple alternative approach for solving the problem which only involves a basic knowledge of Euclidean geometry along with the use of the sine rule. Copyright © 2021 Association for Mathematics Education of South Africa (AMESA). All rights reserved.