Geometric Reasoning · Measurement and Geometry

Lines and Angles

Identifying and measuring angles formed by intersecting and parallel lines.

Key Questions

  1. 1Why must the angles on a straight line always sum to 180 degrees?
  2. 2How can we use parallel line properties to prove the sum of angles in a triangle?
  3. 3What is the minimum amount of information needed to uniquely identify an angle?

ACARA Content Descriptions

AC9M7SP01AC9M7SP02
Year: Year 7
Subject: Mathematics
Unit: Geometric Reasoning
Period: Measurement and Geometry

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