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The activities linked to these SAT Maths topics are existing Transum resources, not exercises specifically designed for the SAT examination. They use British English and may include questions or difficulty levels beyond and adjacent to those required for the SAT.

• Angle Points Video See a demonstration of angles in a full turn around a point, angles together on a straight line and vertically opposite angles.
• Angle Points Apply the properties of angles at a point, angles on a straight line and vertically opposite angles.
• 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 Angle Explorer 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.
• Polygon Profiles A visual aid about the properties of regular polygons designed to be projected onto a whiteboard for whole class exposition.
• Polybragging The Transum version of the Top Trumps game played online with the properties of polygons.
• Congruent Triangles Video Learn the conditions for two triangles to be congruent and then use this information to solve problems.
• Congruent Triangles Test your understanding of the criteria for congruence of triangles with this self-marking quiz.
• Angles Mixed Find the unknown angles by using the basic angle theorems.
• Geometry Toolbox Create your own dynamic geometrical diagrams using this truly amazing tool from GeoGebra.
• Polygon Hunting Find all the polygons that can be drawn by joining dots on this seven dot grid.

Here are some exam-style questions (not SAT questions) on this topic:

• "The exterior angle of a regular polygon is 72°" ... more
• "Find the number of sides of a regular polygon with interior angle 140°" ... 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
• "(a) Find \( \frac{dy}{dx} \) when:" ... more

See all these questions