Choose the triangle.
We’re shown five different 2D
shapes. We have to choose the one which
is a triangle. Triangles have three straight
sides and three corners. This is a circle, doesn’t have
any corners or any straight sides. This shape has four straight
sides, so it can’t be a triangle. These two shapes also have four
straight sides. So we know they’re not
triangles either. This shape has three straight
sides and three corners. It’s a triangle. We chose the triangle.