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 than ...

The shortest distance between two points is a straight line. This is one of the basic principles of Euclidean geometry. But we live on a spherical Earth, so we cannot travel the straight line path ...

Geometric patterns are classics in modern design speak. But one that especially resonates these days is the triangle. Specifically, triangles laid end to end to create mesmerizing larger-scale ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to ...

This tip for improving your SAT score was provided by Jake Davidson at Veritas Prep. Geometry is one of the toughest subconcepts of the SAT math section for students to master. There are a few reasons ...

Blaise Pascal independently rediscovered classical geometry at the age of 12 despite a ban on formal maths studies. His early ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and to develop students' reasoning with properties of triangle to develop students' ...