Right Angle Challenge

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2

How can you place two sticks to make one right angle?
Now make two right angles using the two sticks.
Can you make three right angles? Four right angles?

You might like to use this interactivity to have a go. Click on the buttons on the right to rotate each stick, then click and drag on the stick itself to move it into a new position.

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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. More information on many of our other activities can be found here.
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NRICH is part of the family of activities in the Millennium Mathematics Project.