formula

S=

a×h \u 2

2. Square area = side length × side length

formula

S=

a×a

3. Area of rectangle = length × width

formula

S=

a×b

4. Area of parallelogram = base × height

formula

S=

a×h

5. Trapezoidal area = (upper bottom+lower bottom) × height ÷2

formula

S=(a+b)h÷2

6. cuboid volume = length × width × height

Formula: V=abh

7. cuboid volume = bottom area × height

Formula: V=abh

8, the circumference of the circle = diameter x π

Formula: L = π d = 2π r

9. Area of circle = 2 radius ×π

Formula: s = π R2

10, the surface (side) area of the cylinder is equal to the perimeter of the bottom multiplied by the height. Formula: s = ch = π DH = 2π RH.

1 1, the surface area of the cylinder: the surface area of the cylinder is equal to the perimeter of the bottom multiplied by the height plus the area of the circles at both ends.

The formula S=ch+2s=ch+2πr2.

12, the volume of the cylinder: the volume of the cylinder is equal to the bottom area multiplied by the height. Formula: V=Sh

Volume (volume) unit conversion

1, 1 m3 = 1000 cubic decimeter.

2. 1 cubic decimeter = 1000 cubic centimeter

3. 1 cubic decimeter = 1 liter

4. 1 cm3 = 1 ml

5 1 m3 = 1000 liter

Extended data

Mathematical formula is an expression method that people find some connection between things in nature and express it in some way. It represents the equal or unequal relationship between the quantities of different things in nature, accurately reflects the internal and external relations of things, and is the basis for us to reach another thing from one thing, so as to better understand the essence and connotation of things.