Function: noun
Date: 15th century
: the angle bounded by two lines perpendicular to each other : an angle of 90° or 1/2 π radians
– right-an · gled \ ' r ī t- ' a ŋ -g ə ld \ or right-an · gle \ -g ə l \ adjective
Function: noun
Date: 15th century
: the angle bounded by two lines perpendicular to each other : an angle of 90° or 1/2 π radians
– right-an · gled \ ' r ī t- ' a ŋ -g ə ld \ or right-an · gle \ -g ə l \ adjective
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012