🌐Tiếng ViệtEnglishEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی中文日本語EntityQ864413· pop 36Góc phụ nhauAlso known as 2D Angles, complementtwo angles which sum up to 90 degrees (or π/2 radians)Available in 35 languagesEspañolFrançais中文РусскийPortuguêsItalianoالعربيةAlbanianAsturianBasqueConnectionsangleEntity