22. A wooden cube with an edge length of 1 dm needs to be covered with colored paper. Will a square sheet of paper with a side length of 2.5 dm be enough for this purpose? How should the sheet be cut for this purpose?
22. The area of one face of the cube is 1 dm ${ }^{2}$, and the area of all six faces is 6 dm $^{2}$, while the area of the available sheet is 6.25 dm $^{2}(2.5 \cdot 2.5=6.25)$. Since $6.25>6$, there will be enough paper. The sheet should be cut as shown in Figure 27.

![](https://cdn.mathpix.com/cropped/2024_05_21_00604dc020e3721fc1f4g-180.jpg?height=411&width=162&top_left_y=1599&top_left_x=336)

Fig. 26

![](https://cdn.mathpix.com/cropped/2024_05_21_00604dc020e3721fc1f4g-180.jpg?height=414&width=422&top_left_y=1598&top_left_x=677)

Fig. 27

![](https://cdn.mathpix.com/cropped/2024_05_21_00604dc020e3721fc1f4g-180.jpg?height=596&width=548&top_left_y=1461&top_left_x=1185)