Please verify property number 8 of a regular polygon: “Diagonals of regular polygon will cross each other at the center. Length of diagonals is equal to the diameter of the circumscribing circle.” This statement is inconsistent with the formula for determining the number of diagonals D.

I suggest that the phrase “isosceles triangle” in property number 9 (Segment of regular polygon is an isosceles triangle whose equal sides are radius of circumscribing circle” be changed to “equilateral triangle” if it is true that segments have equal sides.

Thank you very much sir for bumping me up on these.

For easy access, I pasted here the statements from the regular polygon page.

Here are my corrections to it.

The above corrections has been committed but as usual, it is always open for more improvement.

Thank you very much sir and God bless you.

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