"quadrant"@en-us . . . "quadrant"^^ . . "106356954"@en-us . . "108101321"@en-us . . . . . . . "the area enclosed by two perpendicular radii of a circle"@en-us . "0"^^ . . "08627554-n"^^ . . "108627554"^^ . . . . . . . . . . . "0"^^ . . . .