List

Surprised by Shapes



For these tasks, all you need to know is a little about area and perimeter.

Seemingly simple shapes can lead to intriguing questions and surprising results...

Triangles in a Square
problem
Favourite

Triangles in a Square

Age
11 to 14
Challenge level
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What are the possible areas of triangles drawn in a square?
Perimeter Challenge
problem
Favourite

Perimeter Challenge

Age
11 to 14
Challenge level
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Can you deduce the perimeters of the shapes from the information given?
Quadrilaterals in a Square
problem
Favourite

Quadrilaterals in a Square

Age
11 to 14
Challenge level
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What's special about the area of quadrilaterals drawn in a square?
Garden Shed
problem
Favourite

Garden Shed

Age
11 to 14
Challenge level
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Can you minimise the amount of wood needed to build the roof of my garden shed?