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Angles

The inclination of one line to another. One complete revolution equals 360° (degrees) or 2π radians.

The five types of angles are zero, acute, right, obtuse, and straight.

See also: Acute Angle, Angle Bisector, Corresponding Angles, Coterminal Angles, Initial Side, Obtuse Angle, Protractor, Radian, Reflex Angle, Right Angle, Same Side Exterior Angles, Same Side Interior Angles, Straight Angle, Supplementary Angles, Terminal Side, Vertical Angles, Zero Angle.

Subjects: Geometry Trigonometry