20 1 1 What are the nine basic facts of the newly revised mathematics curriculum standard?

The "axiom of mathematics" was renamed as "basic facts of mathematics", as follows:

1, two points determine a straight line.

2. The line segment between two points is the shortest.

There is one and only one straight line perpendicular to this straight line.

4. Two straight lines are cut by the third straight line. If congruent angles are equal, two straight lines are parallel.

5. There is one and only one straight line parallel to this straight line.

6. The corresponding edges and angles of congruent triangles are equal respectively.

7. The edge axiom (SSS) has two triangles and three corresponding equilateral sides.

8. These two straight lines are parallel and the included angle is equal.

9. There is no * * line to determine a circle at three points.