An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشهشناختی اخترشناسی-اخترفیزیک
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complementary angle
زاویهی ِ اسپرنده
zâviyé-ye osporandé
Fr.: angle complémentaire
Any angle that when added to another one creates a 90° angle.
See also:
→
complementary
; →
angle
.