RADII

Mon, 30 Jan '23

Half-diameters

Thu, 1 Sep '22

Bicycle spokes, e.g.

Wed, 30 Mar '22

Minute hands, essentially

Mon, 28 Feb '22

Bones next to ulnae

Sun, 19 Sep '21

Straight sides of sectors

Wed, 28 Apr '21

Spokes, say

Sun, 17 Jan '21

Variables in (pi)r^2 and 2(pi)r