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This activity was created by '{$1}'. Do you want to modify the original activity or create your own copy instead?
This activity was created by '{$1}' and you lack the permission to edit it. Do you want to create your own copy instead and add it to the book?
De oppervlakte van een driehoek oefenen
Met de slider schaal kun je de driehoek vergroten/verkleinen.
Met de slider draai kun je de driehoek draaien.
Met show zie je de berekeningen.