AC9M7M04Year 7MeasurementPractised on site

AC9M7M04 — Year 7 Measurement

Official Curriculum Content Description:

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

Worked Examples (1)

Example 1Alternate & Corresponding Angle Proofs
In the parallel lines diagram below, given angle 130∘130^\circ, find the size of corresponding angle on the opposite side xx.
130°x
Diagram not accurately drawn
Common mistake: Subtracted from 180° (treated as co-interior)
Correct Answer:130°130°
Accepted: A unit is optional (degrees, deg, ° all accepted).
Worked Solution:
The lines are marked parallel. Alternate/corresponding angles are equal. So x = 130°.

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