Symmetry, infinity & triangles are the chief ingredients that will keep you engaged in 2016's first issue of At Right Angles. By the way, the year 2016 itself is a triangular number. We are continuing with the Desmos-based activity & of course the recurring theme at AtRiA, nay mathematics itself 'How to Prove It'. Also find in the pages, the review of professor Ian Stewart's book 'Taming the Infinite'. And as a finishing touch, this issue's Pullout section addresses Word Problems, a historically an area of difficulty for school students.