Chapter 1: Concepts and Calculations

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Chapter 1 Concepts and Calculations

• Gifted/Honors Geometry

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Section 1.1 Undefined Terms

• Point
• Line
• Plane

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Section 1.1 Definitions

• Collinear
• Coplanar
• Segment
• Ray
• Angle

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Section 1.1 Postulates

• Know the Five Postulates on page 12
• 1
• 2
• 3
• 4
• 5

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Section 1.2 Definitions and Postulates

• Length of AB
• Segment Congruence Postulate
• Segment Addition Postulate

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Section 1.3Definitions

• Measure of an Angle
• Complementary Angles
• Supplementary Angles

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Section 1.3 Definitions Cont.

• Right Angle
• Acute Angle
• Obtuse Angle
• Straight Angle
• Reflex Angle

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Sections 1.3 Postulates/Property

• Angle Congruence Postulate
• Angle Addition Postulate
• Linear Pair Property

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Section 1.4 Definitions

• Perpendicular Lines
• Parallel Lines
• Segment Bisector
• Midpoint
• Perpendicular Bisector
• Angle Bisector

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Section 1.5 Definitions

• Inscribed Circle
• Circumscribed Circle
• Concurrent
• Incenter
• Circumcenter

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Section 1.6 Definitions

• Rigid Transformations
• Preimage
• Image
• Translation
• Rotation
• Reflection

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Section 1.7 Definitions

• Horizontal translation of h units
• Vertical translation of k units
• Reflection across the x-axis
• Reflection across the y-axis
• 180 degree rotation about the origin