Add Yahoo as a preferred source to see more of our stories on Google. Pythagoras Theorem Blackboard What began as a bonus question in a high school math contest has resulted in a staggering 10 new ...

Learn how to prove that two triangles are congruent. Two or more triangles are said to be congruent if they have the same ...

A University of Tartu student has come up with a new proof of the Pythagorean theorem using origami. While folding paper is already used — even in basic school — to demonstrate the well-known ...

to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to develop students' language related to different triangles to engage ...

A simple, step-by-step breakdown of two “perfect” math proofs. But which prime number is p? It must be on our list of primes, because our list is complete. But it also can’t be on our list of primes, ...