how do i explain how there are 4 lines of symmetry in the Alabama state flag?

http://www.learner.org/courses/learningmath/geometry/session7/part_a/index.html

The above site shows how to determine lines of symmetry.

Fold upper left corner to bottom right corner. That is one line.
Fole upper right corner to bottom left corner. That is line 2.
Now see if you can find the other two.
See the picture of the Alabama flag here.
http://www.learner.org/courses/learningmath/geometry/session7/part_a/index.html

To explain how there are four lines of symmetry in the Alabama state flag, you can follow these steps:

1. Familiarize yourself with the Alabama state flag: It is a rectangular flag with a crimson red background and a white St. Andrew's cross in the middle.

2. Concept of Symmetry: Symmetry refers to a sense of balance or similarity on either side of a dividing line. In the case of the Alabama state flag, lines of symmetry are imaginary lines that can be drawn to divide the flag into two congruent halves.

3. Identify the first line of symmetry: Start by drawing an imaginary line vertically that divides the flag into two equal halves. Notice how the left half is a mirror image of the right half. This vertical line of symmetry is the first one.

4. Identify the second line of symmetry: Next, draw another imaginary line horizontally that divides the flag into two equal halves. Observe how the upper half is a reflection of the lower half. This horizontal line of symmetry is the second one.

5. Identify the third line of symmetry: Now, draw a diagonal line from the upper left corner to the lower right corner of the flag. Notice that the left portion of the flag is a reflection of the right portion along this line. This diagonal line of symmetry is the third one.

6. Identify the fourth line of symmetry: Finally, draw a diagonal line from the upper right corner to the lower left corner of the flag. Notice that the right portion of the flag is a reflection of the left portion along this line. This diagonal line of symmetry is the fourth one.

By following these steps and explaining each line of symmetry, you can help others understand that there are indeed four lines of symmetry in the Alabama state flag.