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If we are looking for Pythagoras theorem where are the right angles triangles?
Rectangular Pyramids
Age 14 to 18
Challenge Level 
Why do this problem?
It provides experience of generalising a result from 2 dimensions to an equivalent result in 3 dimensions. This problem asks the question for them but learners should be encouraged to ask themselves "What if..." and always to think about possible generalisations.Key questions
What comes to mind when a problem involves squares of distances?If we are looking for Pythagoras theorem where are the right angles triangles?
Possible extension
The problem Pythagoras for a Tetrahedron.You may also like
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