When two angles are allied, what geometric shape do they typically form?

Allied angles are formed when two angles have a common vertex and their sides are on the same line, meaning that they are adjacent to each other. When angles are allied, they typically create a geometric shape that resembles a C or U shape, which appears quite straightforward if you visualize the angles opening in the same direction.

This distinct pairing showcases the curvature or direction of the angles, confirming that the allied angles create a path that flows in a curved line, resembling a C or U shape. Straight lines and other geometric shapes like triangles or rectangles do not accurately depict the nature of allied angles as rectangles have four right angles and triangles have a sum of angles equal to 180 degrees, both of which diverge from the characteristics of allied angles. This is what makes the shape accurately described as a C or U shape.