If d = 20 and c = 20π if d = 26 and c = 26π if r = 12 and c = π if r = 18 and c = 14π if r = 6 and c = 12π if r = 50 and c = 100π ^matches w then d = 1 then d = 100 then d = 12 then d = 14 then r = 10 then r = 13 what goes w what!

If d = 20 and C = 20π, then r = 10.
If d = 26 and C = 26π, then r = 13.
If r = 1/2 and C = π, then d = 1.
If r = 7 and C = 14π, then d = 14.
If r = 6 and C = 12π, then d = 12.
If r = 50 and C = 100π, then d = 100.
*Note, r= 1/2×d or d=2×r