The height of a wooden box is 5 decimeters, the perimeter of the bottom surface is 3 meters, the area of the bottom is 54 square decimeters, and its surface area is [] square decimeters, Just fill in the blanks The circumference of the upper and lower sides of a cuboid is 48 cm. If the height of the cuboid is 20 cm, then the total length of its edges is [] cm, and the maximum volume of the cuboid is [] cubic cm If the length of a cuboid is increased by 5 cm, the surface area will be increased by 80 square cm. The original surface area of the cuboid is [] fast Time limit OK, absolutely

The height of a wooden box is 5 decimeters, the perimeter of the bottom surface is 3 meters, the area of the bottom is 54 square decimeters, and its surface area is [] square decimeters, Just fill in the blanks The circumference of the upper and lower sides of a cuboid is 48 cm. If the height of the cuboid is 20 cm, then the total length of its edges is [] cm, and the maximum volume of the cuboid is [] cubic cm If the length of a cuboid is increased by 5 cm, the surface area will be increased by 80 square cm. The original surface area of the cuboid is [] fast Time limit OK, absolutely

The height of a wooden box is 5 decimeters, the perimeter of its bottom is 3 meters, the area of its bottom is 54 square decimeters, and its surface area is [204] square decimeters,
30 × 5 = 150 square decimeter 150 + 54 = 204 square decimeter

The height of a wooden box is 5 decimeters, the perimeter of the bottom is 3 meters, the area of the bottom is 54 square decimeters, and its surface area is () square decimeters?

Let the length be a and the width be B
a+b=30/2=15
ab=54
aa-15a+54=0
A1 = 9 decimeters, A2 = 6 decimeters
Width B1 = 6 decimeters, B2 = 9
Surface area of wooden box = 2 (9 * 6 + 5 * 6 + 9 * 5) = 258 square decimeters

Stand together to make a cuboid wood with a volume of 672 cubic decimeters. If the wooden box is 1.4 meters long and 0.6 meters wide, what is the height of the wooden box

672÷（14x6）=672÷84=8dm
A: 8dm high