Geometry

Key Definitions

• Angle: The measure of rotation between two lines or planes
• Types of Angles: Acute, Obtuse, Right, Reflex

Angle Properties

• Complementary Angles: Sum to 90°
• Supplementary Angles: Sum to 180°
• Vertically Opposite Angles: Equal
• Alternate Interior Angles: Equal
• Corresponding Angles: Equal

Exam Tips

• Sketch diagrams to visualize angle relationships
• Use angle properties to find unknown angles
• Pay attention to the wording of angle-related questions