The part of the graphic interface in Figure 8 labelled V is called

The part of the graphic interface labelled V in Figure 8 is called "fit to window". This option allows you to automatically adjust the size of the image or graphic to fit within the boundaries of the window or screen. For example, if you have an image that is too large to be displayed on your screen without scrolling or resizing, you can select the "fit to window" option and the image will be automatically scaled down to fit within the dimensions of the window or screen. This can be a helpful feature for working with large images or graphics, as it allows you to view them in their entirety without having to scroll or zoom in and out manually.