If a steel angle is flattened out, what is the result?

When a steel angle is flattened out, the result is a plate. This transformation occurs because a steel angle, which typically has an L-shaped cross-section, consists of two perpendicular flanges that provide structural support in various applications. Flattening the angle effectively removes the L-shaped form and produces a flat surface.

A plate is defined as a flat piece of steel that has uniform thickness and is often used in construction and manufacturing for structural applications. This characteristic makes the plate a versatile component in various industries, suitable for use in beams, flooring, and other structural elements.

The other options represent different shapes or forms of steel that do not result from flattening a steel angle. Channel refers to a piece with a C-shaped cross-section, while a beam usually maintains a rectangular or other complex shape for support. A strip is typically a narrower, flat piece that might not match the greater width or use case of a plate formed from a flattened angle.