How many square decimeters is its surface area

How many square decimeters is its surface area

2 (15 * 5 + 15 * 5 + 5 * 5) = 350 square decimeters
6 * 5 * 5 * 3-5 * 5 * 4 = 350 square decimeters

A cube with a surface area of 54 square decimeters has a volume of () cubic centimeters
a.6 b.8 c.27

The volume is 270 cubic centimeters
This is the correct answer. Your unit should be converted from decimeter to centimeter

The edge of a cube pool is 3.5 meters long. How many square meters does the pool cover and how many liters of water can it hold

She's right!

Dig a cuboid pool with length, width and height of 20m, 10m and 3M respectively. What is the floor area of the pool

Floor area is the bottom area
Bottom area = length times width = 20 * 10 = 200 square meters

Dig a cube pool with 10 meters of edge length. It covers an area of 600 square meters

No, its surface area is 600 square meters, and its floor area is 100 square meters

A cube pool with 5 decimeters edge length, the water surface is 2 decimeters lower than the pool mouth, and the water capacity is () liters

The volume of water storage is: 5 * 5 * 3 = 75 cubic decimeter
And 1 cubic decimeter = 1 liter
So the capacity of water is 75 liters

It is judged that the floor area of a square wooden box with an edge length of 1m is 6m
Use the same small cube to make a big cube. At least 4 pieces are needed
If the volumes of two cuboids are equal, their surface areas must also be equal
If the surface areas of two cubes are equal, then their edge lengths must also be equal []
A cuboid with unequal length and width can have at most eight edges of equal length []

The floor area of a square wooden box with an edge length of 1m is 6m
Use the same small cube to make a big cube, at least 4 pieces [wrong]
If the volumes of two cuboids are equal, their surface areas must also be equal
If the surface areas of two cubes are equal, then their edge lengths must also be equal
A cuboid with unequal length and width can have at most eight edges. When the length or width is equal to the height, the lengths of the eight edges are equal

It is known that the surface area of a cube is 384cm & # 178;, and the edge length and volume of the cube are calculated

One face s = 384 / 6 = 64
Edge length = 8cm
V=8*8*8=512

Dig a cylindrical reservoir with a bottom diameter of 12 meters and a depth of 1.5 meters. How many square meters does the reservoir cover? How many cubic meters of soil need to be excavated? Cement is applied to the sides and bottom of the reservoir. The cement required is 4 kg per square meter. How many kg of cement are needed?
Please, I need it very much. I'll have to help you as soon as possible! Thank you!!!!!!!!

1. S base = 36 π M2
2、V=36*1.5π=54πm2
3. S side = 2 * π * 6 * 1.5 = 18 π M2
18π*4=72kg

The water storage capacity of a rectangular pool covering 25 square meters is 45 cubic meters. The pool is () meters deep

The storage capacity of a 25 square meter cuboid pool is 45 cubic meters. The pool is (1.8) meters deep