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

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 ...

Calling all brainteaser aficionados! This triangle puzzle baffles even the brainiest. Can you correctly determine how many triangles it has?

A lot of geometry in school focuses on proofs and theorems, while the SAT is mostly centered on multiple-choice circle and triangle problems.

Learn more about Triangle Math and Science Academy here - find all of the schools in the district, student data, test scores, district budget and more.