How to memorize mathematical formulas quickly?

1, rectangular area = length× width, and the calculation formula is S=ab.

2. Square area = side length × side length, and the calculation formula is S=a×a=a2.

3. The circumference of a rectangle = (length+width) ×2, and the calculation formula is C=(a+b)×2.

4. Square perimeter = side length ×4, and the calculation formula is C=4a.

5. parallelogram area = base × height, and the calculation formula is S=ah.

6. Triangle area = base × height ÷2, and the calculation formula is S=a×h÷2.

7. Trapezoidal area = (upper bottom+lower bottom) × H ÷2, and the calculation formula is S=(a+b)×h÷2.

8. cuboid volume = length × width × height, and the calculation formula is V=abh.

9. The area of a circle = π× radius square, and the calculation formula is V=πr2.

10, cube volume = side length × side length × side length, and the calculation formula is V=a3.

1 1, cuboids and cubes can all be written as bottom area × height, and the calculation formula is V=sh.

12, the volume of cylinder = bottom area × height, and the calculation formula is V=sh.