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Definition of Right angle
1. Noun. The 90 degree angle between two perpendicular lines. 
Definition of Right angle
1. Noun. (geometry) An angle of 90 degrees; the bisect of the angle formed by a single straight line. ¹
¹ Source: wiktionary.com
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1. Noun. The 90 degree angle between two perpendicular lines. 
1. Noun. (geometry) An angle of 90 degrees; the bisect of the angle formed by a single straight line. ¹
¹ Source: wiktionary.com