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In this activity students are shown what constitutes a supplementary angle and answer a series of questions to demonstrate their understanding.
|Content knowledge, Teaching resource
|Teaching strategies and pedagogical approaches
|Angles, Parallel, Co-interior, Alternate, Triangle, Interior
|Strand and focus
|Angles and geometric reasoning
|AC: Mathematics (V9.0) content descriptions
Identify corresponding, alternate and co-interior relationships between angles formed when parallel lines are crossed by a transversal; use them to solve problems and explain reasons
Demonstrate that the interior angle sum of a triangle in the plane is 180° and apply this to determine the interior angle sum of other shapes and the size of unknown angles
Understanding geometric properties (P6)
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