Chapter 2: Angle relationships Notes

Sections

1. 2A Points, lines, intervals and angles Mastered

   Geometry language and notation: points, lines, rays, intervals, collinear and concurrent lines, and naming angles with three letters.

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2. 2B Measuring and classifying angles Mastered

   Using a protractor, and classifying angles as acute, right, obtuse, straight, reflex or a revolution.

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3. 2C Complementary, supplementary and vertically opposite angles Mastered

   Adjacent angles, complementary and supplementary angles, angles at a point and vertically opposite angles, used to find unknown angles.

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4. 2D Transversals and parallel lines Mastered

   Corresponding, alternate and co-interior angles formed when a transversal crosses parallel lines, and how to prove lines are parallel.

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5. 2E Solving geometry problems with reasons Mastered

   Finding unknown angles in multi-step geometry problems and writing a reason for each step, including using an extra parallel line.

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