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Tubular Stand

Age 14 to 16
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Two pieces of dowel placed end-to-end and rotated should reveal a "neat" fit. Some cardboard wrapping paper tubes or toilet paper holders can be very useful in illustrating this point.

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Three Cubes

Can you work out the dimensions of the three cubes?

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The builders have dug a hole in the ground to be filled with concrete for the foundations of our garage. How many cubic metres of ready-mix concrete should the builders order to fill this hole to make the concrete raft for the foundations?

In a Spin

What is the volume of the solid formed by rotating this right angled triangle about the hypotenuse?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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