Overlaps

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

If I have these two shapes:

yellow square, red equilateral triangle


and I overlap them a bit, I get this:

overlapped so that triangle is half covered by square


The overlapped part looks like this:

orange right angled triangle shape of overlap


Can you match these pairs of shapes with the shape you would get if you overlapped them?

pairs of shapes to match with shapes of overlap


You may like to use this interactivity to test your ideas after you have tried imagining the overlap in your head.

Full screen version
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Published October 2007.