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Grade 8–9 · Concept lesson

Geometry of 2D Shapes – Part 2

About this video

Part 2 continues into parallel lines cut by a transversal: corresponding, alternate and co-interior angles.

What it covers

  • Corresponding angles (equal)
  • Alternate angles (equal)
  • Co-interior angles (add to 180°)
  • Using these to find unknown angles

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