Approach this like a math puzzle —strategically and methodically. With each row containing six triangles, and a systematic ...

Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting ...

While trying to get to sleep, Seth counts 30°–60°–90° triangles instead of sheep. The post Math Puzzle for August 22, 2025 appeared first on Alameda Post.

A version of this article appears in print on Aug. 27, 2019, Section D, Page 3 of the New York edition with the headline: How Many Triangles? Count on Math to Help.

Exhibits in Cambridge and Somerville showcase geometry in art, featuring Edna Andrade and triangular-themed works.