\( \DeclareMathOperator{cosec}{cosec} \)

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Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Angles in a Triangle Video A reminder of how to use the fact that the angles in a triangle sum to 180 degrees to find the size of unmarked angles in triangular diagrams.
- Angles in a Triangle A self marking exercise involving calculating the unknown angle in a triangle.
- Angle Chase Find all of the angles on the geometrical diagrams.
- Angle Theorems Diagrams of the angle theorems with interactive examples.
- Polygon Angles Animation Barbara Bug walks around a regular hexagon turning through each of the exterior angles as she goes.
- Polygon Angles Video A concise reminder about angles, both interior and exterior, in regular and irregular polygons.
- Polygon Angles A mixture of problems related to calculating the interior and exterior angles of polygons.
- Polybragging The Transum version of the Top Trumps game played online with the properties of polygons.
- Polygon Hunting Find all the polygons that can be drawn by joining dots on this seven dot grid.

Here are some exam-style questions on this statement:

- "
*The exterior angle of a regular polygon is 72°*" ... more - "
*The diagram, not drawn to scale, show a polygon with one line of symmetry, AE.*" ... more - "
*A number of regular pentagons and squares are arranged around the outside of a large blue regular polygon. Just the lower part of the arrangement is shown below.*" ... more - "
*PQRS is a rhombus and C is the midpoint of QS.*" ... more - "
*The diagrams are not drawn to scale*" ... more

Here is an Advanced Starter on this statement:

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

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