Please note: This site contains links to websites not controlled by the Australian Government or ESA. More information here.
Parallel lines and angles in a triangle
In this activity students find the missing angle in a triangle and identify angles on parallel lines.
Additional details |
|
| Year level(s) | Year 7 |
|---|---|
| Audience | Teacher |
| Purpose | Content knowledge, Teaching resource |
| Teaching strategies and pedagogical approaches | Feedback |
| Keywords | Angles, Parallel, Co-interior, Alternate, Triangle, Interior |
Curriculum alignment |
|
| Strand and focus | Space |
| Topics | Angles and geometric reasoning |
| AC: Mathematics (V9.0) content descriptions |
AC9M7M04
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
AC9M7M05
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 |
| Numeracy progression |
Understanding geometric properties (P6)
|
Copyright details |
|
| Organisation | GeoGebra |
| Copyright | © 2022 GeoGebra. Free-for-education material. |
Related resources
-
Supplementary angles
In this activity students are shown what constitutes a supplementary angle and answer a series of questions to demonstrate their understanding.
Resource details -
Alternate interior angles assessment activity
In this activity students identify and find the size of alternate angles.
Resource details -
Parallel lines and the angle sum of a triangle
This resource focuses on drawing representations of solid objects, and gives detailed explanations of the curriculum content with worked examples and assessment questions.
Resource details -
Circles
This resource, focusing on the features of a circle and finding the area of a circle, gives detailed explanations of the curriculum content, worked examples and assessment questions.
Resource details