Oh.. what exactly is the radius in this question?
I guess it's just that he said:
3. The Attempt at a Solution
The substituted equations: LI = (100)(1 + (1.2e-5)(LaTeX Code: \\Delta T)
LZ = (100)(1 + (3.1e-5)(LaTeX Code: \\Delta T)
From here I use the formula s = rLaTeX Code: \\theta...