Volume and volume

(1) What are volume and volume?

Volume is the size of the space occupied by an object.

Volume, the volume of objects that can be accommodated in boxes, oil drums, warehouses, etc. , usually called their volume.

(2) Common units

1 unit of volume

* cubic meter * cubic decimeter * cubic centimeter

2 unit of volume * L * mL

(3) Unit conversion

1 unit of volume

* 1 m3 = 1000 cubic decimeter

* 1 cubic decimeter = 1000 cubic centimeter

2 unit of volume

* 1L = 1000ml

* 1 l = 1 m3

* 1 ml = 1 cm3

A complete collection of commonly used calculation formulas in Xiaoshengchu mathematics

Calculation formula of primary school mathematics graphics:

1. Perimeter of rectangle = (length+width)? 2，C=(a+b)？ 2

2. The circumference of a square = the side length? 4，C=4a

3. Area of rectangle = length? Width, S=ab

4. Square area = side length? Side length, S=a*a=a2

5. Area of triangle = bottom? Tall? 2, S = huh? 2

6. The area of parallelogram = bottom? High, S=ah

7. The area of trapezoid = (upper bottom+lower bottom)? Tall? 2，S=(a+b)h？ 2

8. Diameter = radius? 2, d=2r, radius = diameter? 2，r=d？ 2

9. Circumference = pi? Diameter = pi? Radius? 2，c=？ d=2？ r

10. Area of circle = pi? Radius? Radius, S=? r2

1 1. Surface area of cuboid = (length? Width+length? Height+width? High)? 2

12. cuboid volume = length? Wide? High level, V =abh

13. Surface area of cube = side length? Side length? 6，S=6a2

14. Volume of cube = side length? Side length? Side length, V=a*a*a=a3.

15. lateral area of cylinder = perimeter of bottom circle? High level, S=ch

16. Cylinder surface area = upper and lower bottom areas+side areas.

S=2？ r +2？ rh=2？ (d？ 2)+2? (d？ 2)h=2？ (C？ 2)+Ch

17. Volume of cylinder = bottom area? High, V=Sh, V=? rh=？ (d？ 2)h=？ (C？ 2)h

18. Volume of cone = bottom area? Tall? 3，V=Sh？ 3=? r h？ 3=? (d？ 2)h？ 3=? (C？ 2)h？ three