22gigantes.com - Nov 16, 2013 · 7. Here are some triangles drawn on a square grid. Two of the triangles are congruent. (a) Write down the letters of these two triangles. ... Nov 16, 2013 · 7. Here are some triangles drawn on a square grid. Two of the triangles are congruent. (a) Write down the letters of these two triangles. ...