. . . "13871717-n"^^ . . "a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)"@en-us . . "diameter"^^ . "113085735"@en-us . . "a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)"@en-us . . . . "0"^^ . "113871717"^^ . . "0"^^ . . "diameter"@en-us . . .