A cuboid has a lateral surface of 260 cm and a height of 10 cm. The dimensions of the base are: one is 3 cm smaller than the other. Instruction: First, we find the perimeter of the base of the cuboid as a ratio of the side surface to the height. (260cm2: 10cm=26 cm.) Then we write the equation x+x-3+x+x-3=26cm, where with x we ​​marked one of the sides, we find the sides