1. T RIANGLES IN SCIENCES ♣ AND IN MUSIC ♫ Lisa B. et Célia C. (5°5) Jean Rostand Secondary School. Etwinning Project: Triangles are everywhere ♫♪♫♪♫ ♪♫♪♫♪ I ♥ triangle !

2. T RIANGLE IN MUSIC ♫ o The triangle is a metal instrument which is in the shape of a triangle. You must strike it with a stick to play it.

3. T RIANGLE IN M ATHEMATICS In geometry, a triangle is three-sided polygon. ♫ ♪ ♫ ♪ ♫ ♪ ♫ ♪ ♫ ♪ ♫ ♪ ♫ ♪

4. T RIANGLE IN G EOGRAPHY A lot of disappearances of planes and ships took place in the Bermuda Triangle which is in the Atlantic Ocean.