How to calculate the volume formula of a circle? A pool 2 meters high and 2 meters in diameter

V = sh = 3.14 × (1) ^ 2 × 2 = 6.28 (M3)

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1. Make a round pool, 10 meters in diameter and 0.15 meters in height. How to calculate its volume,
2. How to build a 50 cubic meter water storage tank? We need a specific plan·
3. What is the standard length of a 1000 cubic meter water tank? Is it better to be round or square? What is the wall thickness
4. A round pool of 10 cubic meters in diameter It's a cylinder
5. A round pool can hold 300 cubic meters of water. The height is 4.5 meters. How big is the diameter? Thank you
6. 1.1 + 2 + 2 square + 2 cube + +2 =? 2. How many sets of integer solutions are there for the equation (square of X - square of y = 1991)? 3. (2x square + X + 1) cube = 6 times of a0x + 5 times of a1x + 4 times of a2x + 3 times of a3x + 2 times of a4x + a5x + A6 Find A0 + A1 + A2 + a3 + A4 + A5 + A6 =? I hope you will understand me
7. Cube of 1 + cube of 2 + +Cube of n=
8. If the sum of squares of one set of opposite sides of a quadrilateral is equal to the sum of squares of another set of opposite sides, If the sum of squares of one set of opposite sides of a quadrilateral is equal to the sum of squares of another set of opposite sides, what is the relationship between its diagonals? Why?
9. Sum of squares of three consecutive nature books____ Give a reason for the square of a natural number!
10. The sum of the squares of a number and 4 is equal to the sum of the squares of the number and 2
11. What is the floor area of the round pool
12. A large pool covers an area of 2860 square meters. If the rainfall is 20 mm per hour, how many cubic meters can the pool store water after 2 hours?
13. The thickness of the bottom is the same as that of the wall. The thickness of the wall is 20 cm, and the outer diameter is 4 m and 5 m. 1 The thickness of the bottom is the same as that of the wall. The thickness of the wall is 20 cm, and the outer diameter is 4 m and 5 m 1. How many cubic meters of water can the pool hold at most? (reserve two decimal places) 2. How many cubic meters of material is needed to build this pool? 3. What is the area of plastering cement on the inner wall and ground of the pool?
14. How many jin of water can be put into a pool?
15. How about one cubic meter of water? If one of my containers is 480cm long, 30cm wide and 40cm high, how can I calculate how many cubic meters of water it can hold?
16. To build a round pool, you need to hold 100 cubic meters of water, 3 meters high and 60 cm thick. How many materials do you need? The materials are concrete and cement
17. I want to know how many bricks are in a cubic meter? For example, 200 * 119 * 115
18. A cube; how many bricks is 190 700
19. How to calculate the number of bricks for a cube of 24 walls in a building
20. How to calculate the number of bricks for a cube of 37 walls in a building