I don't own a 16" hexagon pan so I'm cutting it from a square pan. Can someone please tell me the measurement of a side as well as the diameter from side to side and corner to corner? THANK YOU SO VERY MUCH!!!

The sides of a regular hexagon are half of the diameter as measured from corner to corner, so each side of a 16" hexagon pan would be 8" long.

To find the diameter from side to side you can divide the hexagon into equilateral triangles with sides of 8", the diameter is equal to the height of two of the triangles. Using the Pythagorean theorem, the height of each triangle is 6.93", so the side-to-side diameter is 13.86".

Jason_Kraft: Thank you for your wonderful explanation. It took me back to geometry and trig and algebra I. All wonderfully fuzzy memories. But I got it! Thank you so much.