Investigating Triangles

Which type of triangles can you see here?

In maths we need to cover a wide range of subject areas and this week we have started to work on geometry. Just in case you didn't know, geometry is, 'the area of maths dealing with solids, surfaces, points, lines, curves and angles, and their relationships in space'.
In class we have been using practical resources to help us think about the different types of triangles and which particular things make them different. We used a great deal of mathematical language when talking about right-angled triangles, equilateral triangles as well as scalene triangles. 

Geo boards work well for making triangles.

What can you say about the properties of these triangles?