2. Use the difference between the two sides of the triangle to find the maximum value.

3, join hands and get the best value.

4, hand in hand similar to take the most value

5. Minimize the parallelogram by translation.

6. Minimize the two ends of the two-point symmetrical spoon connection.

7. Minimize two symmetrical broken lines with two ends connected.

8, clock model, the midpoint of two fixed sides to find the minimum.

9, clock model, two similar fixed edges to find the minimum.

10, transform the structure, and find the maximum value of two fixed edges.

1 1, the area conversion method for finding the maximum value.

12, similarity transformation method to find the maximum.

13, similarity coefficient normalization method to find the maximum.

14, trigonometric function for maximum.

15, maximum trajectory

16, a vertical triangle with three moving points.

17, maximum rotation

18, hidden circle maximum-fixed angle dynamic string

19, hidden circle maximum-dynamic angle tuning

Typical exercise of moving point maximum class