What does it mean to enlarge the graph by 3:2? Hurry up

What does it mean to enlarge the graph by 3:2? Hurry up

Enlarge the side length of the figure 3 / 2 times, that is 1.5 times
3 :2
Side length of the obtained figure (after enlargement): side length of the obtained figure (before enlargement)

The graph is enlarged to a certain scale, but what remains unchanged?

Angle

Is the zoom in and zoom out of the figure enlarged or shrunk at a ratio of 3:1

Select your pen, input SC, space, select a base point on the graph, input scale factor (such as 0.2), space, smaller,
If not, repeat the above operation and select the appropriate scale factor

If you cut it into two cuboids, the surface area will be increased by 48 square decimeters
Surface area, volume

First of all, it is impossible to cut parallel to the bottom. If the area added parallel to the bottom is two bottom, it is 2 * 4 * 4 = 32 square decimeters
Therefore, to cut perpendicular to the bottom, the length of the cross-section rectangle is 4 decimeters, and the surface area is increased by 48 square decimeters, so the area of the cross-section rectangle is 24 square decimeters, so the height of the cross-section rectangle, that is, the height of the cuboid is 24 / 4 = 6 decimeters,
Therefore, the bottom of the cuboid is a square with a side length of 4 decimeters and a height of 6 decimeters,
The surface area is 2 * 4 * 4 + 4 * 4 * 6 = 128 square decimeters
The volume is 4 * 4 * 6 = 96 cubic decimeter