A Math Question

A math question for the most intrepid engineering minds among us: This is a template for a lantern. It is 55" wide and creates a lantern that is 15" in diameter. If I am adjusting the template to create a lantern that is 16" in diameter and has 8, rather than 6 sections, what is the width of the new template and of each of the 8 sections within?

I think your measurements are a bit off.

Here is the formula you need:

circumference = pi * diameter

If you want n panels, then you want each panel to have

width = circumference / n