When bending metal, which area compresses while the outer curve stretches?

When bending metal, the area that compresses while the outer curve stretches is indeed the inside of the curve. During the bending process, the material on the inner side of the bend is forced closer together, resulting in compression. This occurs because the metal fibers are being shortened due to the curvature formed during bending.

In contrast, the outer side of the curve experiences tension, which causes it to elongate as the shape changes. The distinction between these two areas is critical in understanding the mechanical properties and behavior of the material under stress. Additionally, other choices refer to aspects that do not directly result in the compression during the bending process; therefore, recognizing the significance of the correct area is crucial for effective metalworking and structural integrity assessments.