2. Triangles can be used for different purposes Tanguy.S and mohamed.O maths in English option Jean Rostand secondary school maths in English option Jean Rostand secondary school Project eTwinning

3. The triangle in music The triangle is a music instrument made of a piece of metal folded in the shape of a triangle. This triangle is used by a single person

4. The triangle in science In this triangle-shaped stretch of Atlantic Ocean between Miami, Bermuda and Puerto Rico, many boats, planes or people have disappeared with no explanation. This part of the world remains a real mystery!

5. The triangle in maths A triangle is a 3 sided polygon. It has different names depending on its sides or angles (right angled, isosceles, scalene, equilateral, acute, obtuse). The sum of the measures of 3 angles always equals 180°