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Un article trouvé pour ce sujet.
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If the earth was made of a ball of string |
2013-09-18 |
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Tammy pose la question :
My 9 year old son asked me a question and I have no idea how to work it out! Please can you help?
If the earth was made of a ball of string and you unravelled the string how long would it be? Assuming the string is 5mm thick.
Penny Nom lui répond. |
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