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Shapes
im 2-dimensional shapes inquiry 
Shapes and circles im Overlapping shapes inquiry

Angles and shapes
im 4 pentagons inquiry
im 12 equilateral triangles
Angles im Parallel lines inquiry
Area
im Equal areas inquiry
im A square fits into a circle better than a circle fits into a square. im The areas of a rectangle, a triangle and a circle are equal. im Fraction of a shape inquiry
| Area and perimeter im 4 by 3 rectangle inquiry

Volume and surface area im The surface area of a cuboid can never be less than its volume.
Volume of a cylinder im For a cylinder of volume πr2h, r + h = n. Given n, the maximum volume occurs when r and h are integers. Enlargement im Enlargement inquiry 
Scale factors
im Scale factors inquiry
The surface area and volume of cube B are twice the surface area and volume of cube A.
Combined transformations
im If you reflect a shape twice in two different lines of reflection, then you can map the object onto the image with one transformation.
Pythagoras' Theorem and trigonometry
im Right-angled triangles inquiry

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