The letter A is drawn inside a rectangle: its two arms run from the middle of the top edge to the bottom corners, and a flat line crosses the whole rectangle halfway down. Count the triangles.

The small triangle between the arms above the flat line and the big one between the arms down to the base, 2. The two corner triangles at the top, beside the arms, 2. The two small ones at the bottom corners below the flat line, 2. Total $2+2+2=6$.